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Finding the Fourth Proportional to 71,322.65, 106,891.19 and 29,154.52

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Solution

The fourth proportional to 71,322.65, 106,891.19 and 29,154.52 is: 43,693.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,322.65 : 106,891.19 = 29,154.52 : x
  2. Step 2: Convert to fraction form
    71,322.65/106,891.19 = 29,154.52/x
  3. Step 3: Cross multiply
    71,322.65x = 106,891.19 × 29,154.52
  4. Step 4: Simplify right side
    71,322.65x = 3,116,361,336.68
  5. Step 5: Solve for x
    x = 3,116,361,336.68/71,322.65
  6. Step 6: Final answer
    x = 43,693.85

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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.