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Finding the Fourth Proportional to 92,104.92, 127,115.64 and 51,820.20

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Solution

The fourth proportional to 92,104.92, 127,115.64 and 51,820.20 is: 71,517.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,104.92 : 127,115.64 = 51,820.20 : x
  2. Step 2: Convert to fraction form
    92,104.92/127,115.64 = 51,820.20/x
  3. Step 3: Cross multiply
    92,104.92x = 127,115.64 × 51,820.20
  4. Step 4: Simplify right side
    92,104.92x = 6,587,157,887.93
  5. Step 5: Solve for x
    x = 6,587,157,887.93/92,104.92
  6. Step 6: Final answer
    x = 71,517.98

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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.