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Finding the Fourth Proportional to 378,812.43, 568,204.80 and 112,566.03

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Solution

The fourth proportional to 378,812.43, 568,204.80 and 112,566.03 is: 168,844.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,812.43 : 568,204.80 = 112,566.03 : x
  2. Step 2: Convert to fraction form
    378,812.43/568,204.80 = 112,566.03/x
  3. Step 3: Cross multiply
    378,812.43x = 568,204.80 × 112,566.03
  4. Step 4: Simplify right side
    378,812.43x = 63,960,555,159.09
  5. Step 5: Solve for x
    x = 63,960,555,159.09/378,812.43
  6. Step 6: Final answer
    x = 168,844.92

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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.