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Finding the Fourth Proportional to 331,375.78, 457,282.29 and 188,117.02

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Solution

The fourth proportional to 331,375.78, 457,282.29 and 188,117.02 is: 259,592.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,375.78 : 457,282.29 = 188,117.02 : x
  2. Step 2: Convert to fraction form
    331,375.78/457,282.29 = 188,117.02/x
  3. Step 3: Cross multiply
    331,375.78x = 457,282.29 × 188,117.02
  4. Step 4: Simplify right side
    331,375.78x = 86,022,581,693.58
  5. Step 5: Solve for x
    x = 86,022,581,693.58/331,375.78
  6. Step 6: Final answer
    x = 259,592.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.