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Finding the Fourth Proportional to 48,331.40, 72,642.90 and 41,916.20

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Solution

The fourth proportional to 48,331.40, 72,642.90 and 41,916.20 is: 63,000.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,331.40 : 72,642.90 = 41,916.20 : x
  2. Step 2: Convert to fraction form
    48,331.40/72,642.90 = 41,916.20/x
  3. Step 3: Cross multiply
    48,331.40x = 72,642.90 × 41,916.20
  4. Step 4: Simplify right side
    48,331.40x = 3,044,914,324.98
  5. Step 5: Solve for x
    x = 3,044,914,324.98/48,331.40
  6. Step 6: Final answer
    x = 63,000.75

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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.