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Finding the Fourth Proportional to 247,713.30, 341,831.61 and 134,535.78

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Solution

The fourth proportional to 247,713.30, 341,831.61 and 134,535.78 is: 185,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,713.30 : 341,831.61 = 134,535.78 : x
  2. Step 2: Convert to fraction form
    247,713.30/341,831.61 = 134,535.78/x
  3. Step 3: Cross multiply
    247,713.30x = 341,831.61 × 134,535.78
  4. Step 4: Simplify right side
    247,713.30x = 45,988,582,280.01
  5. Step 5: Solve for x
    x = 45,988,582,280.01/247,713.30
  6. Step 6: Final answer
    x = 185,652.45

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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.