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Finding the Fourth Proportional to 60,772.80, 91,180.80 and 29,587.20

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Solution

The fourth proportional to 60,772.80, 91,180.80 and 29,587.20 is: 44,391.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,772.80 : 91,180.80 = 29,587.20 : x
  2. Step 2: Convert to fraction form
    60,772.80/91,180.80 = 29,587.20/x
  3. Step 3: Cross multiply
    60,772.80x = 91,180.80 × 29,587.20
  4. Step 4: Simplify right side
    60,772.80x = 2,697,784,565.76
  5. Step 5: Solve for x
    x = 2,697,784,565.76/60,772.80
  6. Step 6: Final answer
    x = 44,391.32

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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.