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Finding the Fourth Proportional to 59,929.60, 89,991.60 and 40,295.20

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Solution

The fourth proportional to 59,929.60, 89,991.60 and 40,295.20 is: 60,508.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,929.60 : 89,991.60 = 40,295.20 : x
  2. Step 2: Convert to fraction form
    59,929.60/89,991.60 = 40,295.20/x
  3. Step 3: Cross multiply
    59,929.60x = 89,991.60 × 40,295.20
  4. Step 4: Simplify right side
    59,929.60x = 3,626,229,520.32
  5. Step 5: Solve for x
    x = 3,626,229,520.32/59,929.60
  6. Step 6: Final answer
    x = 60,508.15

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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.