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Finding the Fourth Proportional to 254,565.38, 352,061.39 and 222,678.90

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Solution

The fourth proportional to 254,565.38, 352,061.39 and 222,678.90 is: 307,962.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,565.38 : 352,061.39 = 222,678.90 : x
  2. Step 2: Convert to fraction form
    254,565.38/352,061.39 = 222,678.90/x
  3. Step 3: Cross multiply
    254,565.38x = 352,061.39 × 222,678.90
  4. Step 4: Simplify right side
    254,565.38x = 78,396,643,057.67
  5. Step 5: Solve for x
    x = 78,396,643,057.67/254,565.38
  6. Step 6: Final answer
    x = 307,962.71

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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.