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Finding the Fourth Proportional to 252,422.30, 378,522.68 and 94,540

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Solution

The fourth proportional to 252,422.30, 378,522.68 and 94,540 is: 141,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,422.30 : 378,522.68 = 94,540 : x
  2. Step 2: Convert to fraction form
    252,422.30/378,522.68 = 94,540/x
  3. Step 3: Cross multiply
    252,422.30x = 378,522.68 × 94,540
  4. Step 4: Simplify right side
    252,422.30x = 35,785,534,167.20
  5. Step 5: Solve for x
    x = 35,785,534,167.20/252,422.30
  6. Step 6: Final answer
    x = 141,768.51

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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.