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Finding the Fourth Proportional to 144,859.28, 217,244.45 and 100,167.80

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Solution

The fourth proportional to 144,859.28, 217,244.45 and 100,167.80 is: 150,220.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,859.28 : 217,244.45 = 100,167.80 : x
  2. Step 2: Convert to fraction form
    144,859.28/217,244.45 = 100,167.80/x
  3. Step 3: Cross multiply
    144,859.28x = 217,244.45 × 100,167.80
  4. Step 4: Simplify right side
    144,859.28x = 21,760,897,031.65
  5. Step 5: Solve for x
    x = 21,760,897,031.65/144,859.28
  6. Step 6: Final answer
    x = 150,220.94

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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.