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Finding the Fourth Proportional to 92,475.73, 138,702.73 and 25,921.22

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Solution

The fourth proportional to 92,475.73, 138,702.73 and 25,921.22 is: 38,878.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,475.73 : 138,702.73 = 25,921.22 : x
  2. Step 2: Convert to fraction form
    92,475.73/138,702.73 = 25,921.22/x
  3. Step 3: Cross multiply
    92,475.73x = 138,702.73 × 25,921.22
  4. Step 4: Simplify right side
    92,475.73x = 3,595,343,269.22
  5. Step 5: Solve for x
    x = 3,595,343,269.22/92,475.73
  6. Step 6: Final answer
    x = 38,878.78

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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.