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Finding the Fourth Proportional to 68,331, 94,296.80 and 38,523

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Solution

The fourth proportional to 68,331, 94,296.80 and 38,523 is: 53,161.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,331 : 94,296.80 = 38,523 : x
  2. Step 2: Convert to fraction form
    68,331/94,296.80 = 38,523/x
  3. Step 3: Cross multiply
    68,331x = 94,296.80 × 38,523
  4. Step 4: Simplify right side
    68,331x = 3,632,595,626.40
  5. Step 5: Solve for x
    x = 3,632,595,626.40/68,331
  6. Step 6: Final answer
    x = 53,161.75

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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.