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Finding the Fourth Proportional to 252,612.17, 378,918.71 and 168,536.60

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Solution

The fourth proportional to 252,612.17, 378,918.71 and 168,536.60 is: 252,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,612.17 : 378,918.71 = 168,536.60 : x
  2. Step 2: Convert to fraction form
    252,612.17/378,918.71 = 168,536.60/x
  3. Step 3: Cross multiply
    252,612.17x = 378,918.71 × 168,536.60
  4. Step 4: Simplify right side
    252,612.17x = 63,861,670,375.47
  5. Step 5: Solve for x
    x = 63,861,670,375.47/252,612.17
  6. Step 6: Final answer
    x = 252,805.20

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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.