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Finding the Fourth Proportional to 220,143.67, 303,799.46 and 124,668.97

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Solution

The fourth proportional to 220,143.67, 303,799.46 and 124,668.97 is: 172,043.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,143.67 : 303,799.46 = 124,668.97 : x
  2. Step 2: Convert to fraction form
    220,143.67/303,799.46 = 124,668.97/x
  3. Step 3: Cross multiply
    220,143.67x = 303,799.46 × 124,668.97
  4. Step 4: Simplify right side
    220,143.67x = 37,874,364,381.91
  5. Step 5: Solve for x
    x = 37,874,364,381.91/220,143.67
  6. Step 6: Final answer
    x = 172,043.85

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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.