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Finding the Fourth Proportional to 154,909.13, 213,782.38 and 96,800.97

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Solution

The fourth proportional to 154,909.13, 213,782.38 and 96,800.97 is: 133,590.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,909.13 : 213,782.38 = 96,800.97 : x
  2. Step 2: Convert to fraction form
    154,909.13/213,782.38 = 96,800.97/x
  3. Step 3: Cross multiply
    154,909.13x = 213,782.38 × 96,800.97
  4. Step 4: Simplify right side
    154,909.13x = 20,694,340,781.05
  5. Step 5: Solve for x
    x = 20,694,340,781.05/154,909.13
  6. Step 6: Final answer
    x = 133,590.19

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