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Finding the Fourth Proportional to 71,359.86, 107,008.80 and 38,072.52

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Solution

The fourth proportional to 71,359.86, 107,008.80 and 38,072.52 is: 57,092.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,359.86 : 107,008.80 = 38,072.52 : x
  2. Step 2: Convert to fraction form
    71,359.86/107,008.80 = 38,072.52/x
  3. Step 3: Cross multiply
    71,359.86x = 107,008.80 × 38,072.52
  4. Step 4: Simplify right side
    71,359.86x = 4,074,094,678.18
  5. Step 5: Solve for x
    x = 4,074,094,678.18/71,359.86
  6. Step 6: Final answer
    x = 57,092.25

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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.