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Finding the Fourth Proportional to 242,362.91, 363,380.34 and 84,505.25

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Solution

The fourth proportional to 242,362.91, 363,380.34 and 84,505.25 is: 126,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,362.91 : 363,380.34 = 84,505.25 : x
  2. Step 2: Convert to fraction form
    242,362.91/363,380.34 = 84,505.25/x
  3. Step 3: Cross multiply
    242,362.91x = 363,380.34 × 84,505.25
  4. Step 4: Simplify right side
    242,362.91x = 30,707,546,476.79
  5. Step 5: Solve for x
    x = 30,707,546,476.79/242,362.91
  6. Step 6: Final answer
    x = 126,700.68

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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.