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Finding the Fourth Proportional to 192,177.30, 287,877.15 and 133,079.70

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Solution

The fourth proportional to 192,177.30, 287,877.15 and 133,079.70 is: 199,350.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,177.30 : 287,877.15 = 133,079.70 : x
  2. Step 2: Convert to fraction form
    192,177.30/287,877.15 = 133,079.70/x
  3. Step 3: Cross multiply
    192,177.30x = 287,877.15 × 133,079.70
  4. Step 4: Simplify right side
    192,177.30x = 38,310,604,758.86
  5. Step 5: Solve for x
    x = 38,310,604,758.86/192,177.30
  6. Step 6: Final answer
    x = 199,350.31

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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.