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Finding the Fourth Proportional to 270,348.72, 373,061.28 and 149,491.60

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Solution

The fourth proportional to 270,348.72, 373,061.28 and 149,491.60 is: 206,287.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,348.72 : 373,061.28 = 149,491.60 : x
  2. Step 2: Convert to fraction form
    270,348.72/373,061.28 = 149,491.60/x
  3. Step 3: Cross multiply
    270,348.72x = 373,061.28 × 149,491.60
  4. Step 4: Simplify right side
    270,348.72x = 55,769,527,645.25
  5. Step 5: Solve for x
    x = 55,769,527,645.25/270,348.72
  6. Step 6: Final answer
    x = 206,287.37

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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.