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Finding the Fourth Proportional to 71,906.58, 107,869.59 and 67,532.58

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Solution

The fourth proportional to 71,906.58, 107,869.59 and 67,532.58 is: 101,308.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,906.58 : 107,869.59 = 67,532.58 : x
  2. Step 2: Convert to fraction form
    71,906.58/107,869.59 = 67,532.58/x
  3. Step 3: Cross multiply
    71,906.58x = 107,869.59 × 67,532.58
  4. Step 4: Simplify right side
    71,906.58x = 7,284,711,716.24
  5. Step 5: Solve for x
    x = 7,284,711,716.24/71,906.58
  6. Step 6: Final answer
    x = 101,308.00

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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.