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Finding the Fourth Proportional to 68,279.17, 94,221.71 and 37,657.30

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Solution

The fourth proportional to 68,279.17, 94,221.71 and 37,657.30 is: 51,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,279.17 : 94,221.71 = 37,657.30 : x
  2. Step 2: Convert to fraction form
    68,279.17/94,221.71 = 37,657.30/x
  3. Step 3: Cross multiply
    68,279.17x = 94,221.71 × 37,657.30
  4. Step 4: Simplify right side
    68,279.17x = 3,548,134,723.11
  5. Step 5: Solve for x
    x = 3,548,134,723.11/68,279.17
  6. Step 6: Final answer
    x = 51,965.11

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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.