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Finding the Fourth Proportional to 150,516.70, 225,702.15 and 83,886.10

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Solution

The fourth proportional to 150,516.70, 225,702.15 and 83,886.10 is: 125,788.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,516.70 : 225,702.15 = 83,886.10 : x
  2. Step 2: Convert to fraction form
    150,516.70/225,702.15 = 83,886.10/x
  3. Step 3: Cross multiply
    150,516.70x = 225,702.15 × 83,886.10
  4. Step 4: Simplify right side
    150,516.70x = 18,933,273,125.12
  5. Step 5: Solve for x
    x = 18,933,273,125.12/150,516.70
  6. Step 6: Final answer
    x = 125,788.52

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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.