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Finding the Fourth Proportional to 359,127.36, 538,849.72 and 188,308.28

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Solution

The fourth proportional to 359,127.36, 538,849.72 and 188,308.28 is: 282,545.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,127.36 : 538,849.72 = 188,308.28 : x
  2. Step 2: Convert to fraction form
    359,127.36/538,849.72 = 188,308.28/x
  3. Step 3: Cross multiply
    359,127.36x = 538,849.72 × 188,308.28
  4. Step 4: Simplify right side
    359,127.36x = 101,469,863,951.68
  5. Step 5: Solve for x
    x = 101,469,863,951.68/359,127.36
  6. Step 6: Final answer
    x = 282,545.62

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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.