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Finding the Fourth Proportional to 48,578.70, 67,344.33 and 45,917.86

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Solution

The fourth proportional to 48,578.70, 67,344.33 and 45,917.86 is: 63,655.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,578.70 : 67,344.33 = 45,917.86 : x
  2. Step 2: Convert to fraction form
    48,578.70/67,344.33 = 45,917.86/x
  3. Step 3: Cross multiply
    48,578.70x = 67,344.33 × 45,917.86
  4. Step 4: Simplify right side
    48,578.70x = 3,092,307,516.73
  5. Step 5: Solve for x
    x = 3,092,307,516.73/48,578.70
  6. Step 6: Final answer
    x = 63,655.63

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.