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Finding the Fourth Proportional to 218,369.92, 327,557.04 and 92,031.52

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Solution

The fourth proportional to 218,369.92, 327,557.04 and 92,031.52 is: 138,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,369.92 : 327,557.04 = 92,031.52 : x
  2. Step 2: Convert to fraction form
    218,369.92/327,557.04 = 92,031.52/x
  3. Step 3: Cross multiply
    218,369.92x = 327,557.04 × 92,031.52
  4. Step 4: Simplify right side
    218,369.92x = 30,145,572,277.90
  5. Step 5: Solve for x
    x = 30,145,572,277.90/218,369.92
  6. Step 6: Final answer
    x = 138,048.19

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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.