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Finding the Fourth Proportional to 110,709.20, 152,778.69 and 60,408.20

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Solution

The fourth proportional to 110,709.20, 152,778.69 and 60,408.20 is: 83,363.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,709.20 : 152,778.69 = 60,408.20 : x
  2. Step 2: Convert to fraction form
    110,709.20/152,778.69 = 60,408.20/x
  3. Step 3: Cross multiply
    110,709.20x = 152,778.69 × 60,408.20
  4. Step 4: Simplify right side
    110,709.20x = 9,229,084,897.36
  5. Step 5: Solve for x
    x = 9,229,084,897.36/110,709.20
  6. Step 6: Final answer
    x = 83,363.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.