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Finding the Fourth Proportional to 67,371.76, 92,971.76 and 37,159.84

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Solution

The fourth proportional to 67,371.76, 92,971.76 and 37,159.84 is: 51,279.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,371.76 : 92,971.76 = 37,159.84 : x
  2. Step 2: Convert to fraction form
    67,371.76/92,971.76 = 37,159.84/x
  3. Step 3: Cross multiply
    67,371.76x = 92,971.76 × 37,159.84
  4. Step 4: Simplify right side
    67,371.76x = 3,454,815,726.12
  5. Step 5: Solve for x
    x = 3,454,815,726.12/67,371.76
  6. Step 6: Final answer
    x = 51,279.88

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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.