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Finding the Fourth Proportional to 354,847.52, 532,115.76 and 133,076

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Solution

The fourth proportional to 354,847.52, 532,115.76 and 133,076 is: 199,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,847.52 : 532,115.76 = 133,076 : x
  2. Step 2: Convert to fraction form
    354,847.52/532,115.76 = 133,076/x
  3. Step 3: Cross multiply
    354,847.52x = 532,115.76 × 133,076
  4. Step 4: Simplify right side
    354,847.52x = 70,811,836,877.76
  5. Step 5: Solve for x
    x = 70,811,836,877.76/354,847.52
  6. Step 6: Final answer
    x = 199,555.68

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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.