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Finding the Fourth Proportional to 61,781.92, 92,673.38 and 40,452.62

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Solution

The fourth proportional to 61,781.92, 92,673.38 and 40,452.62 is: 60,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,781.92 : 92,673.38 = 40,452.62 : x
  2. Step 2: Convert to fraction form
    61,781.92/92,673.38 = 40,452.62/x
  3. Step 3: Cross multiply
    61,781.92x = 92,673.38 × 40,452.62
  4. Step 4: Simplify right side
    61,781.92x = 3,748,880,663.02
  5. Step 5: Solve for x
    x = 3,748,880,663.02/61,781.92
  6. Step 6: Final answer
    x = 60,679.25

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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.