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Finding the Fourth Proportional to 107,076.71, 147,765.11 and 59,329.91

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Solution

The fourth proportional to 107,076.71, 147,765.11 and 59,329.91 is: 81,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,076.71 : 147,765.11 = 59,329.91 : x
  2. Step 2: Convert to fraction form
    107,076.71/147,765.11 = 59,329.91/x
  3. Step 3: Cross multiply
    107,076.71x = 147,765.11 × 59,329.91
  4. Step 4: Simplify right side
    107,076.71x = 8,766,889,641.97
  5. Step 5: Solve for x
    x = 8,766,889,641.97/107,076.71
  6. Step 6: Final answer
    x = 81,874.85

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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.