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Finding the Fourth Proportional to 278,565.26, 418,013.91 and 101,086.11

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Solution

The fourth proportional to 278,565.26, 418,013.91 and 101,086.11 is: 151,689.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,565.26 : 418,013.91 = 101,086.11 : x
  2. Step 2: Convert to fraction form
    278,565.26/418,013.91 = 101,086.11/x
  3. Step 3: Cross multiply
    278,565.26x = 418,013.91 × 101,086.11
  4. Step 4: Simplify right side
    278,565.26x = 42,255,400,087.79
  5. Step 5: Solve for x
    x = 42,255,400,087.79/278,565.26
  6. Step 6: Final answer
    x = 151,689.41

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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.