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Finding the Fourth Proportional to 402,310.13, 555,168.13 and 241,133.90

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Solution

The fourth proportional to 402,310.13, 555,168.13 and 241,133.90 is: 332,752.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,310.13 : 555,168.13 = 241,133.90 : x
  2. Step 2: Convert to fraction form
    402,310.13/555,168.13 = 241,133.90/x
  3. Step 3: Cross multiply
    402,310.13x = 555,168.13 × 241,133.90
  4. Step 4: Simplify right side
    402,310.13x = 133,869,852,963.93
  5. Step 5: Solve for x
    x = 133,869,852,963.93/402,310.13
  6. Step 6: Final answer
    x = 332,752.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.