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Finding the Fourth Proportional to 179,432.97, 268,948.29 and 72,792.15

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Solution

The fourth proportional to 179,432.97, 268,948.29 and 72,792.15 is: 109,106.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,432.97 : 268,948.29 = 72,792.15 : x
  2. Step 2: Convert to fraction form
    179,432.97/268,948.29 = 72,792.15/x
  3. Step 3: Cross multiply
    179,432.97x = 268,948.29 × 72,792.15
  4. Step 4: Simplify right side
    179,432.97x = 19,577,324,267.92
  5. Step 5: Solve for x
    x = 19,577,324,267.92/179,432.97
  6. Step 6: Final answer
    x = 109,106.62

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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.