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Finding the Fourth Proportional to 83,579.43, 115,335.86 and 45,852.87

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Solution

The fourth proportional to 83,579.43, 115,335.86 and 45,852.87 is: 63,274.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,579.43 : 115,335.86 = 45,852.87 : x
  2. Step 2: Convert to fraction form
    83,579.43/115,335.86 = 45,852.87/x
  3. Step 3: Cross multiply
    83,579.43x = 115,335.86 × 45,852.87
  4. Step 4: Simplify right side
    83,579.43x = 5,288,479,965.65
  5. Step 5: Solve for x
    x = 5,288,479,965.65/83,579.43
  6. Step 6: Final answer
    x = 63,274.90

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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.