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Finding the Fourth Proportional to 338,146.28, 466,641.84 and 187,243.28

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Solution

The fourth proportional to 338,146.28, 466,641.84 and 187,243.28 is: 258,395.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,146.28 : 466,641.84 = 187,243.28 : x
  2. Step 2: Convert to fraction form
    338,146.28/466,641.84 = 187,243.28/x
  3. Step 3: Cross multiply
    338,146.28x = 466,641.84 × 187,243.28
  4. Step 4: Simplify right side
    338,146.28x = 87,375,548,706.84
  5. Step 5: Solve for x
    x = 87,375,548,706.84/338,146.28
  6. Step 6: Final answer
    x = 258,395.71

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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.