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Finding the Fourth Proportional to 360,712.20, 541,262.70 and 150,371.40

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Solution

The fourth proportional to 360,712.20, 541,262.70 and 150,371.40 is: 225,638.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,712.20 : 541,262.70 = 150,371.40 : x
  2. Step 2: Convert to fraction form
    360,712.20/541,262.70 = 150,371.40/x
  3. Step 3: Cross multiply
    360,712.20x = 541,262.70 × 150,371.40
  4. Step 4: Simplify right side
    360,712.20x = 81,390,429,966.78
  5. Step 5: Solve for x
    x = 81,390,429,966.78/360,712.20
  6. Step 6: Final answer
    x = 225,638.14

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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.