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Finding the Fourth Proportional to 137,132.40, 205,775.40 and 58,233.20

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Solution

The fourth proportional to 137,132.40, 205,775.40 and 58,233.20 is: 87,382.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,132.40 : 205,775.40 = 58,233.20 : x
  2. Step 2: Convert to fraction form
    137,132.40/205,775.40 = 58,233.20/x
  3. Step 3: Cross multiply
    137,132.40x = 205,775.40 × 58,233.20
  4. Step 4: Simplify right side
    137,132.40x = 11,982,960,023.28
  5. Step 5: Solve for x
    x = 11,982,960,023.28/137,132.40
  6. Step 6: Final answer
    x = 87,382.41

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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.