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Finding the Fourth Proportional to 242,363.51, 363,711.31 and 84,591.96

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Solution

The fourth proportional to 242,363.51, 363,711.31 and 84,591.96 is: 126,945.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,363.51 : 363,711.31 = 84,591.96 : x
  2. Step 2: Convert to fraction form
    242,363.51/363,711.31 = 84,591.96/x
  3. Step 3: Cross multiply
    242,363.51x = 363,711.31 × 84,591.96
  4. Step 4: Simplify right side
    242,363.51x = 30,767,052,587.07
  5. Step 5: Solve for x
    x = 30,767,052,587.07/242,363.51
  6. Step 6: Final answer
    x = 126,945.89

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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.