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Finding the Fourth Proportional to 160,514.81, 221,517.62 and 87,922.81

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Solution

The fourth proportional to 160,514.81, 221,517.62 and 87,922.81 is: 121,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,514.81 : 221,517.62 = 87,922.81 : x
  2. Step 2: Convert to fraction form
    160,514.81/221,517.62 = 87,922.81/x
  3. Step 3: Cross multiply
    160,514.81x = 221,517.62 × 87,922.81
  4. Step 4: Simplify right side
    160,514.81x = 19,476,451,614.91
  5. Step 5: Solve for x
    x = 19,476,451,614.91/160,514.81
  6. Step 6: Final answer
    x = 121,337.41

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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.