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Finding the Fourth Proportional to 71,713.78, 107,569.80 and 32,243.02

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Solution

The fourth proportional to 71,713.78, 107,569.80 and 32,243.02 is: 48,364.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,713.78 : 107,569.80 = 32,243.02 : x
  2. Step 2: Convert to fraction form
    71,713.78/107,569.80 = 32,243.02/x
  3. Step 3: Cross multiply
    71,713.78x = 107,569.80 × 32,243.02
  4. Step 4: Simplify right side
    71,713.78x = 3,468,375,212.80
  5. Step 5: Solve for x
    x = 3,468,375,212.80/71,713.78
  6. Step 6: Final answer
    x = 48,364.14

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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.