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Finding the Fourth Proportional to 125,370.97, 187,844.16 and 89,650.94

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Solution

The fourth proportional to 125,370.97, 187,844.16 and 89,650.94 is: 134,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,370.97 : 187,844.16 = 89,650.94 : x
  2. Step 2: Convert to fraction form
    125,370.97/187,844.16 = 89,650.94/x
  3. Step 3: Cross multiply
    125,370.97x = 187,844.16 × 89,650.94
  4. Step 4: Simplify right side
    125,370.97x = 16,840,405,706.95
  5. Step 5: Solve for x
    x = 16,840,405,706.95/125,370.97
  6. Step 6: Final answer
    x = 134,324.60

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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.