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Finding the Fourth Proportional to 92,691.32, 127,913.52 and 50,249.76

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Solution

The fourth proportional to 92,691.32, 127,913.52 and 50,249.76 is: 69,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,691.32 : 127,913.52 = 50,249.76 : x
  2. Step 2: Convert to fraction form
    92,691.32/127,913.52 = 50,249.76/x
  3. Step 3: Cross multiply
    92,691.32x = 127,913.52 × 50,249.76
  4. Step 4: Simplify right side
    92,691.32x = 6,427,623,680.76
  5. Step 5: Solve for x
    x = 6,427,623,680.76/92,691.32
  6. Step 6: Final answer
    x = 69,344.40

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1.5x scale

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.