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Finding the Fourth Proportional to 61,710.30, 92,565.45 and 54,452.70

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Solution

The fourth proportional to 61,710.30, 92,565.45 and 54,452.70 is: 81,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,710.30 : 92,565.45 = 54,452.70 : x
  2. Step 2: Convert to fraction form
    61,710.30/92,565.45 = 54,452.70/x
  3. Step 3: Cross multiply
    61,710.30x = 92,565.45 × 54,452.70
  4. Step 4: Simplify right side
    61,710.30x = 5,040,438,679.22
  5. Step 5: Solve for x
    x = 5,040,438,679.22/61,710.30
  6. Step 6: Final answer
    x = 81,679.05

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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.