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Finding the Fourth Proportional to 247,691.52, 341,812.80 and 134,513.28

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Solution

The fourth proportional to 247,691.52, 341,812.80 and 134,513.28 is: 185,627.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,691.52 : 341,812.80 = 134,513.28 : x
  2. Step 2: Convert to fraction form
    247,691.52/341,812.80 = 134,513.28/x
  3. Step 3: Cross multiply
    247,691.52x = 341,812.80 × 134,513.28
  4. Step 4: Simplify right side
    247,691.52x = 45,978,360,873.98
  5. Step 5: Solve for x
    x = 45,978,360,873.98/247,691.52
  6. Step 6: Final answer
    x = 185,627.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.