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Finding the Fourth Proportional to 92,507.43, 138,816.50 and 39,916.92

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Solution

The fourth proportional to 92,507.43, 138,816.50 and 39,916.92 is: 59,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,507.43 : 138,816.50 = 39,916.92 : x
  2. Step 2: Convert to fraction form
    92,507.43/138,816.50 = 39,916.92/x
  3. Step 3: Cross multiply
    92,507.43x = 138,816.50 × 39,916.92
  4. Step 4: Simplify right side
    92,507.43x = 5,541,126,530.89
  5. Step 5: Solve for x
    x = 5,541,126,530.89/92,507.43
  6. Step 6: Final answer
    x = 59,899.26

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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.