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Finding the Fourth Proportional to 92,691.36, 127,915.08 and 54,452.52

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Solution

The fourth proportional to 92,691.36, 127,915.08 and 54,452.52 is: 75,145.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,691.36 : 127,915.08 = 54,452.52 : x
  2. Step 2: Convert to fraction form
    92,691.36/127,915.08 = 54,452.52/x
  3. Step 3: Cross multiply
    92,691.36x = 127,915.08 × 54,452.52
  4. Step 4: Simplify right side
    92,691.36x = 6,965,298,707.25
  5. Step 5: Solve for x
    x = 6,965,298,707.25/92,691.36
  6. Step 6: Final answer
    x = 75,145.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.