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Finding the Fourth Proportional to 83,754.45, 115,581.60 and 45,514.29

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Solution

The fourth proportional to 83,754.45, 115,581.60 and 45,514.29 is: 62,809.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,754.45 : 115,581.60 = 45,514.29 : x
  2. Step 2: Convert to fraction form
    83,754.45/115,581.60 = 45,514.29/x
  3. Step 3: Cross multiply
    83,754.45x = 115,581.60 × 45,514.29
  4. Step 4: Simplify right side
    83,754.45x = 5,260,614,461.06
  5. Step 5: Solve for x
    x = 5,260,614,461.06/83,754.45
  6. Step 6: Final answer
    x = 62,809.97

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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.