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Finding the Fourth Proportional to 92,343.92, 138,507.24 and 39,743.60

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Solution

The fourth proportional to 92,343.92, 138,507.24 and 39,743.60 is: 59,611.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,343.92 : 138,507.24 = 39,743.60 : x
  2. Step 2: Convert to fraction form
    92,343.92/138,507.24 = 39,743.60/x
  3. Step 3: Cross multiply
    92,343.92x = 138,507.24 × 39,743.60
  4. Step 4: Simplify right side
    92,343.92x = 5,504,776,343.66
  5. Step 5: Solve for x
    x = 5,504,776,343.66/92,343.92
  6. Step 6: Final answer
    x = 59,611.68

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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.