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Finding the Fourth Proportional to 372,148.35, 558,221.31 and 102,276.87

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Solution

The fourth proportional to 372,148.35, 558,221.31 and 102,276.87 is: 153,414.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,148.35 : 558,221.31 = 102,276.87 : x
  2. Step 2: Convert to fraction form
    372,148.35/558,221.31 = 102,276.87/x
  3. Step 3: Cross multiply
    372,148.35x = 558,221.31 × 102,276.87
  4. Step 4: Simplify right side
    372,148.35x = 57,093,128,354.10
  5. Step 5: Solve for x
    x = 57,093,128,354.10/372,148.35
  6. Step 6: Final answer
    x = 153,414.97

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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.