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Finding the Fourth Proportional to 338,687.52, 508,264.56 and 117,071.52

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Solution

The fourth proportional to 338,687.52, 508,264.56 and 117,071.52 is: 175,687.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,687.52 : 508,264.56 = 117,071.52 : x
  2. Step 2: Convert to fraction form
    338,687.52/508,264.56 = 117,071.52/x
  3. Step 3: Cross multiply
    338,687.52x = 508,264.56 × 117,071.52
  4. Step 4: Simplify right side
    338,687.52x = 59,503,304,601.33
  5. Step 5: Solve for x
    x = 59,503,304,601.33/338,687.52
  6. Step 6: Final answer
    x = 175,687.92

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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.