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Finding the Fourth Proportional to 61,712.76, 85,132.26 and 36,202.44

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Solution

The fourth proportional to 61,712.76, 85,132.26 and 36,202.44 is: 49,940.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,712.76 : 85,132.26 = 36,202.44 : x
  2. Step 2: Convert to fraction form
    61,712.76/85,132.26 = 36,202.44/x
  3. Step 3: Cross multiply
    61,712.76x = 85,132.26 × 36,202.44
  4. Step 4: Simplify right side
    61,712.76x = 3,081,995,534.71
  5. Step 5: Solve for x
    x = 3,081,995,534.71/61,712.76
  6. Step 6: Final answer
    x = 49,940.98

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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.