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Finding the Fourth Proportional to 67,400.70, 101,101.05 and 66,525.90

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Solution

The fourth proportional to 67,400.70, 101,101.05 and 66,525.90 is: 99,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,400.70 : 101,101.05 = 66,525.90 : x
  2. Step 2: Convert to fraction form
    67,400.70/101,101.05 = 66,525.90/x
  3. Step 3: Cross multiply
    67,400.70x = 101,101.05 × 66,525.90
  4. Step 4: Simplify right side
    67,400.70x = 6,725,838,342.20
  5. Step 5: Solve for x
    x = 6,725,838,342.20/67,400.70
  6. Step 6: Final answer
    x = 99,788.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.