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Finding the Fourth Proportional to 61,593.60, 92,433.60 and 39,460.80

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Solution

The fourth proportional to 61,593.60, 92,433.60 and 39,460.80 is: 59,218.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,593.60 : 92,433.60 = 39,460.80 : x
  2. Step 2: Convert to fraction form
    61,593.60/92,433.60 = 39,460.80/x
  3. Step 3: Cross multiply
    61,593.60x = 92,433.60 × 39,460.80
  4. Step 4: Simplify right side
    61,593.60x = 3,647,503,802.88
  5. Step 5: Solve for x
    x = 3,647,503,802.88/61,593.60
  6. Step 6: Final answer
    x = 59,218.88

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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.