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Finding the Fourth Proportional to 61,515.48, 84,337.70 and 60,394.48

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Solution

The fourth proportional to 61,515.48, 84,337.70 and 60,394.48 is: 82,800.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,515.48 : 84,337.70 = 60,394.48 : x
  2. Step 2: Convert to fraction form
    61,515.48/84,337.70 = 60,394.48/x
  3. Step 3: Cross multiply
    61,515.48x = 84,337.70 × 60,394.48
  4. Step 4: Simplify right side
    61,515.48x = 5,093,531,535.90
  5. Step 5: Solve for x
    x = 5,093,531,535.90/61,515.48
  6. Step 6: Final answer
    x = 82,800.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.