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Finding the Fourth Proportional to 70,325,073.60, 105,487,610.40 and 47,366,822.40

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Solution

The fourth proportional to 70,325,073.60, 105,487,610.40 and 47,366,822.40 is: 71,050,233.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,325,073.60 : 105,487,610.40 = 47,366,822.40 : x
  2. Step 2: Convert to fraction form
    70,325,073.60/105,487,610.40 = 47,366,822.40/x
  3. Step 3: Cross multiply
    70,325,073.60x = 105,487,610.40 × 47,366,822.40
  4. Step 4: Simplify right side
    70,325,073.60x = 4,996,612,907,217,193
  5. Step 5: Solve for x
    x = 4,996,612,907,217,193/70,325,073.60
  6. Step 6: Final answer
    x = 71,050,233.60

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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.