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Finding the Fourth Proportional to 61,959.75, 85,465.44 and 49,414.47

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Solution

The fourth proportional to 61,959.75, 85,465.44 and 49,414.47 is: 68,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,959.75 : 85,465.44 = 49,414.47 : x
  2. Step 2: Convert to fraction form
    61,959.75/85,465.44 = 49,414.47/x
  3. Step 3: Cross multiply
    61,959.75x = 85,465.44 × 49,414.47
  4. Step 4: Simplify right side
    61,959.75x = 4,223,229,420.92
  5. Step 5: Solve for x
    x = 4,223,229,420.92/61,959.75
  6. Step 6: Final answer
    x = 68,160.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.