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Finding the Fourth Proportional to 71,695.40, 107,324.40 and 63,822.20

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Solution

The fourth proportional to 71,695.40, 107,324.40 and 63,822.20 is: 95,538.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,695.40 : 107,324.40 = 63,822.20 : x
  2. Step 2: Convert to fraction form
    71,695.40/107,324.40 = 63,822.20/x
  3. Step 3: Cross multiply
    71,695.40x = 107,324.40 × 63,822.20
  4. Step 4: Simplify right side
    71,695.40x = 6,849,679,321.68
  5. Step 5: Solve for x
    x = 6,849,679,321.68/71,695.40
  6. Step 6: Final answer
    x = 95,538.62

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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.