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Finding the Fourth Proportional to 83,441, 115,151.28 and 45,717.68

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Solution

The fourth proportional to 83,441, 115,151.28 and 45,717.68 is: 63,091.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,441 : 115,151.28 = 45,717.68 : x
  2. Step 2: Convert to fraction form
    83,441/115,151.28 = 45,717.68/x
  3. Step 3: Cross multiply
    83,441x = 115,151.28 × 45,717.68
  4. Step 4: Simplify right side
    83,441x = 5,264,449,370.63
  5. Step 5: Solve for x
    x = 5,264,449,370.63/83,441
  6. Step 6: Final answer
    x = 63,091.88

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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.