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Finding the Fourth Proportional to 367,320.78, 550,729.63 and 187,057.27

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Solution

The fourth proportional to 367,320.78, 550,729.63 and 187,057.27 is: 280,457.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,320.78 : 550,729.63 = 187,057.27 : x
  2. Step 2: Convert to fraction form
    367,320.78/550,729.63 = 187,057.27/x
  3. Step 3: Cross multiply
    367,320.78x = 550,729.63 × 187,057.27
  4. Step 4: Simplify right side
    367,320.78x = 103,017,981,095.91
  5. Step 5: Solve for x
    x = 103,017,981,095.91/367,320.78
  6. Step 6: Final answer
    x = 280,457.81

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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.