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Finding the Fourth Proportional to 160,911.15, 241,445.12 and 66,169.80

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Solution

The fourth proportional to 160,911.15, 241,445.12 and 66,169.80 is: 99,286.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,911.15 : 241,445.12 = 66,169.80 : x
  2. Step 2: Convert to fraction form
    160,911.15/241,445.12 = 66,169.80/x
  3. Step 3: Cross multiply
    160,911.15x = 241,445.12 × 66,169.80
  4. Step 4: Simplify right side
    160,911.15x = 15,976,375,142.78
  5. Step 5: Solve for x
    x = 15,976,375,142.78/160,911.15
  6. Step 6: Final answer
    x = 99,286.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.