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Finding the Fourth Proportional to 92,576.91, 138,865.61 and 22,456.11

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Solution

The fourth proportional to 92,576.91, 138,865.61 and 22,456.11 is: 33,684.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,576.91 : 138,865.61 = 22,456.11 : x
  2. Step 2: Convert to fraction form
    92,576.91/138,865.61 = 22,456.11/x
  3. Step 3: Cross multiply
    92,576.91x = 138,865.61 × 22,456.11
  4. Step 4: Simplify right side
    92,576.91x = 3,118,381,301.10
  5. Step 5: Solve for x
    x = 3,118,381,301.10/92,576.91
  6. Step 6: Final answer
    x = 33,684.22

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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.