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Finding the Fourth Proportional to 160,081.85, 220,921.46 and 92,109.15

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Solution

The fourth proportional to 160,081.85, 220,921.46 and 92,109.15 is: 127,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,081.85 : 220,921.46 = 92,109.15 : x
  2. Step 2: Convert to fraction form
    160,081.85/220,921.46 = 92,109.15/x
  3. Step 3: Cross multiply
    160,081.85x = 220,921.46 × 92,109.15
  4. Step 4: Simplify right side
    160,081.85x = 20,348,887,587.93
  5. Step 5: Solve for x
    x = 20,348,887,587.93/160,081.85
  6. Step 6: Final answer
    x = 127,115.52

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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.