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Finding the Fourth Proportional to 352,665.68, 528,768.47 and 127,983.56

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Solution

The fourth proportional to 352,665.68, 528,768.47 and 127,983.56 is: 191,891.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,665.68 : 528,768.47 = 127,983.56 : x
  2. Step 2: Convert to fraction form
    352,665.68/528,768.47 = 127,983.56/x
  3. Step 3: Cross multiply
    352,665.68x = 528,768.47 × 127,983.56
  4. Step 4: Simplify right side
    352,665.68x = 67,673,668,882.47
  5. Step 5: Solve for x
    x = 67,673,668,882.47/352,665.68
  6. Step 6: Final answer
    x = 191,891.85

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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.