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Finding the Fourth Proportional to 242,302.78, 363,528.57 and 124,057.15

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Solution

The fourth proportional to 242,302.78, 363,528.57 and 124,057.15 is: 186,123.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,302.78 : 363,528.57 = 124,057.15 : x
  2. Step 2: Convert to fraction form
    242,302.78/363,528.57 = 124,057.15/x
  3. Step 3: Cross multiply
    242,302.78x = 363,528.57 × 124,057.15
  4. Step 4: Simplify right side
    242,302.78x = 45,098,316,520.13
  5. Step 5: Solve for x
    x = 45,098,316,520.13/242,302.78
  6. Step 6: Final answer
    x = 186,123.81

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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.