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Finding the Fourth Proportional to 125,033.60, 187,550.40 and 65,984.60

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Solution

The fourth proportional to 125,033.60, 187,550.40 and 65,984.60 is: 98,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,033.60 : 187,550.40 = 65,984.60 : x
  2. Step 2: Convert to fraction form
    125,033.60/187,550.40 = 65,984.60/x
  3. Step 3: Cross multiply
    125,033.60x = 187,550.40 × 65,984.60
  4. Step 4: Simplify right side
    125,033.60x = 12,375,438,123.84
  5. Step 5: Solve for x
    x = 12,375,438,123.84/125,033.60
  6. Step 6: Final answer
    x = 98,976.90

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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.