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Finding the Fourth Proportional to 150,421.52, 225,638.52 and 124,077.20

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Solution

The fourth proportional to 150,421.52, 225,638.52 and 124,077.20 is: 186,120.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,421.52 : 225,638.52 = 124,077.20 : x
  2. Step 2: Convert to fraction form
    150,421.52/225,638.52 = 124,077.20/x
  3. Step 3: Cross multiply
    150,421.52x = 225,638.52 × 124,077.20
  4. Step 4: Simplify right side
    150,421.52x = 27,996,595,773.74
  5. Step 5: Solve for x
    x = 27,996,595,773.74/150,421.52
  6. Step 6: Final answer
    x = 186,120.95

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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.