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Finding the Fourth Proportional to 61,648.80, 92,419.20 and 41,863.20

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Solution

The fourth proportional to 61,648.80, 92,419.20 and 41,863.20 is: 62,758.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,648.80 : 92,419.20 = 41,863.20 : x
  2. Step 2: Convert to fraction form
    61,648.80/92,419.20 = 41,863.20/x
  3. Step 3: Cross multiply
    61,648.80x = 92,419.20 × 41,863.20
  4. Step 4: Simplify right side
    61,648.80x = 3,868,963,453.44
  5. Step 5: Solve for x
    x = 3,868,963,453.44/61,648.80
  6. Step 6: Final answer
    x = 62,758.13

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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.