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Finding the Fourth Proportional to 250,685.91, 375,988.57 and 73,151.33

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Solution

The fourth proportional to 250,685.91, 375,988.57 and 73,151.33 is: 109,715.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,685.91 : 375,988.57 = 73,151.33 : x
  2. Step 2: Convert to fraction form
    250,685.91/375,988.57 = 73,151.33/x
  3. Step 3: Cross multiply
    250,685.91x = 375,988.57 × 73,151.33
  4. Step 4: Simplify right side
    250,685.91x = 27,504,061,897.48
  5. Step 5: Solve for x
    x = 27,504,061,897.48/250,685.91
  6. Step 6: Final answer
    x = 109,715.23

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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.