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Finding the Fourth Proportional to 78,762.29, 108,694.68 and 44,772.20

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Solution

The fourth proportional to 78,762.29, 108,694.68 and 44,772.20 is: 61,787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,762.29 : 108,694.68 = 44,772.20 : x
  2. Step 2: Convert to fraction form
    78,762.29/108,694.68 = 44,772.20/x
  3. Step 3: Cross multiply
    78,762.29x = 108,694.68 × 44,772.20
  4. Step 4: Simplify right side
    78,762.29x = 4,866,499,951.90
  5. Step 5: Solve for x
    x = 4,866,499,951.90/78,762.29
  6. Step 6: Final answer
    x = 61,787.18

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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.