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Finding the Fourth Proportional to 76,947,408,003.80, 115,421,112,005.70 and 76,947,408,003.80

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Solution

The fourth proportional to 76,947,408,003.80, 115,421,112,005.70 and 76,947,408,003.80 is: 115,421,112,005.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,947,408,003.80 : 115,421,112,005.70 = 76,947,408,003.80 : x
  2. Step 2: Convert to fraction form
    76,947,408,003.80/115,421,112,005.70 = 76,947,408,003.80/x
  3. Step 3: Cross multiply
    76,947,408,003.80x = 115,421,112,005.70 × 76,947,408,003.80
  4. Step 4: Simplify right side
    76,947,408,003.80x = 8,881,355,397,754,897,039,360
  5. Step 5: Solve for x
    x = 8,881,355,397,754,897,039,360/76,947,408,003.80
  6. Step 6: Final answer
    x = 115,421,112,005.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.