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Finding the Fourth Proportional to 251,753.20, 377,632.23 and 71,838.43

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Solution

The fourth proportional to 251,753.20, 377,632.23 and 71,838.43 is: 107,758.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,753.20 : 377,632.23 = 71,838.43 : x
  2. Step 2: Convert to fraction form
    251,753.20/377,632.23 = 71,838.43/x
  3. Step 3: Cross multiply
    251,753.20x = 377,632.23 × 71,838.43
  4. Step 4: Simplify right side
    251,753.20x = 27,128,506,520.60
  5. Step 5: Solve for x
    x = 27,128,506,520.60/251,753.20
  6. Step 6: Final answer
    x = 107,758.34

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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.