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Finding the Fourth Proportional to 423,540.85, 635,264.79 and 124,024.42

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Solution

The fourth proportional to 423,540.85, 635,264.79 and 124,024.42 is: 186,023.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,540.85 : 635,264.79 = 124,024.42 : x
  2. Step 2: Convert to fraction form
    423,540.85/635,264.79 = 124,024.42/x
  3. Step 3: Cross multiply
    423,540.85x = 635,264.79 × 124,024.42
  4. Step 4: Simplify right side
    423,540.85x = 78,788,347,126.17
  5. Step 5: Solve for x
    x = 78,788,347,126.17/423,540.85
  6. Step 6: Final answer
    x = 186,023.02

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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.