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Finding the Fourth Proportional to 120,909.00, 166,841.17 and 69,914.04

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Solution

The fourth proportional to 120,909.00, 166,841.17 and 69,914.04 is: 96,473.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,909.00 : 166,841.17 = 69,914.04 : x
  2. Step 2: Convert to fraction form
    120,909.00/166,841.17 = 69,914.04/x
  3. Step 3: Cross multiply
    120,909.00x = 166,841.17 × 69,914.04
  4. Step 4: Simplify right side
    120,909.00x = 11,664,539,432.59
  5. Step 5: Solve for x
    x = 11,664,539,432.59/120,909.00
  6. Step 6: Final answer
    x = 96,473.70

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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.