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Finding the Fourth Proportional to 125,149.20, 187,481.88 and 69,576.72

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Solution

The fourth proportional to 125,149.20, 187,481.88 and 69,576.72 is: 104,230.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,149.20 : 187,481.88 = 69,576.72 : x
  2. Step 2: Convert to fraction form
    125,149.20/187,481.88 = 69,576.72/x
  3. Step 3: Cross multiply
    125,149.20x = 187,481.88 × 69,576.72
  4. Step 4: Simplify right side
    125,149.20x = 13,044,374,269.83
  5. Step 5: Solve for x
    x = 13,044,374,269.83/125,149.20
  6. Step 6: Final answer
    x = 104,230.58

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1.5x scale

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.