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Finding the Fourth Proportional to 359,371.57, 538,540.53 and 247,178.47

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Solution

The fourth proportional to 359,371.57, 538,540.53 and 247,178.47 is: 370,412.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,371.57 : 538,540.53 = 247,178.47 : x
  2. Step 2: Convert to fraction form
    359,371.57/538,540.53 = 247,178.47/x
  3. Step 3: Cross multiply
    359,371.57x = 538,540.53 × 247,178.47
  4. Step 4: Simplify right side
    359,371.57x = 133,115,624,238.39
  5. Step 5: Solve for x
    x = 133,115,624,238.39/359,371.57
  6. Step 6: Final answer
    x = 370,412.23

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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.