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Finding the Fourth Proportional to 354,831.52, 532,091.76 and 133,060

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Solution

The fourth proportional to 354,831.52, 532,091.76 and 133,060 is: 199,531.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,831.52 : 532,091.76 = 133,060 : x
  2. Step 2: Convert to fraction form
    354,831.52/532,091.76 = 133,060/x
  3. Step 3: Cross multiply
    354,831.52x = 532,091.76 × 133,060
  4. Step 4: Simplify right side
    354,831.52x = 70,800,129,585.60
  5. Step 5: Solve for x
    x = 70,800,129,585.60/354,831.52
  6. Step 6: Final answer
    x = 199,531.68

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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.