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Finding the Fourth Proportional to 242,320.87, 363,455.38 and 84,552.31

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Solution

The fourth proportional to 242,320.87, 363,455.38 and 84,552.31 is: 126,819.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,320.87 : 363,455.38 = 84,552.31 : x
  2. Step 2: Convert to fraction form
    242,320.87/363,455.38 = 84,552.31/x
  3. Step 3: Cross multiply
    242,320.87x = 363,455.38 × 84,552.31
  4. Step 4: Simplify right side
    242,320.87x = 30,730,991,960.93
  5. Step 5: Solve for x
    x = 30,730,991,960.93/242,320.87
  6. Step 6: Final answer
    x = 126,819.42

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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.