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Finding the Fourth Proportional to 238,603.91, 329,253.81 and 140,471.57

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Solution

The fourth proportional to 238,603.91, 329,253.81 and 140,471.57 is: 193,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,603.91 : 329,253.81 = 140,471.57 : x
  2. Step 2: Convert to fraction form
    238,603.91/329,253.81 = 140,471.57/x
  3. Step 3: Cross multiply
    238,603.91x = 329,253.81 × 140,471.57
  4. Step 4: Simplify right side
    238,603.91x = 46,250,797,972.91
  5. Step 5: Solve for x
    x = 46,250,797,972.91/238,603.91
  6. Step 6: Final answer
    x = 193,839.23

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1.5x scale

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.