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Finding the Fourth Proportional to 367,862.62, 551,934.03 and 128,003.17

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Solution

The fourth proportional to 367,862.62, 551,934.03 and 128,003.17 is: 192,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,862.62 : 551,934.03 = 128,003.17 : x
  2. Step 2: Convert to fraction form
    367,862.62/551,934.03 = 128,003.17/x
  3. Step 3: Cross multiply
    367,862.62x = 551,934.03 × 128,003.17
  4. Step 4: Simplify right side
    367,862.62x = 70,649,305,470.88
  5. Step 5: Solve for x
    x = 70,649,305,470.88/367,862.62
  6. Step 6: Final answer
    x = 192,053.50

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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.