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Finding the Fourth Proportional to 78,001.61, 107,632.96 and 44,008.11

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Solution

The fourth proportional to 78,001.61, 107,632.96 and 44,008.11 is: 60,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,001.61 : 107,632.96 = 44,008.11 : x
  2. Step 2: Convert to fraction form
    78,001.61/107,632.96 = 44,008.11/x
  3. Step 3: Cross multiply
    78,001.61x = 107,632.96 × 44,008.11
  4. Step 4: Simplify right side
    78,001.61x = 4,736,723,143.31
  5. Step 5: Solve for x
    x = 4,736,723,143.31/78,001.61
  6. Step 6: Final answer
    x = 60,725.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.