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Finding the Fourth Proportional to 92,367.72, 127,480.68 and 66,958.20

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Solution

The fourth proportional to 92,367.72, 127,480.68 and 66,958.20 is: 92,411.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,367.72 : 127,480.68 = 66,958.20 : x
  2. Step 2: Convert to fraction form
    92,367.72/127,480.68 = 66,958.20/x
  3. Step 3: Cross multiply
    92,367.72x = 127,480.68 × 66,958.20
  4. Step 4: Simplify right side
    92,367.72x = 8,535,876,867.58
  5. Step 5: Solve for x
    x = 8,535,876,867.58/92,367.72
  6. Step 6: Final answer
    x = 92,411.90

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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.