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Finding the Fourth Proportional to 255,218.48, 382,798.56 and 68,244.56

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Solution

The fourth proportional to 255,218.48, 382,798.56 and 68,244.56 is: 102,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,218.48 : 382,798.56 = 68,244.56 : x
  2. Step 2: Convert to fraction form
    255,218.48/382,798.56 = 68,244.56/x
  3. Step 3: Cross multiply
    255,218.48x = 382,798.56 × 68,244.56
  4. Step 4: Simplify right side
    255,218.48x = 26,123,918,689.38
  5. Step 5: Solve for x
    x = 26,123,918,689.38/255,218.48
  6. Step 6: Final answer
    x = 102,359.04

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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.