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Finding the Fourth Proportional to 61,399.81, 92,045.85 and 50,956.48

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Solution

The fourth proportional to 61,399.81, 92,045.85 and 50,956.48 is: 76,390.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,399.81 : 92,045.85 = 50,956.48 : x
  2. Step 2: Convert to fraction form
    61,399.81/92,045.85 = 50,956.48/x
  3. Step 3: Cross multiply
    61,399.81x = 92,045.85 × 50,956.48
  4. Step 4: Simplify right side
    61,399.81x = 4,690,332,514.61
  5. Step 5: Solve for x
    x = 4,690,332,514.61/61,399.81
  6. Step 6: Final answer
    x = 76,390.02

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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.