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Finding the Fourth Proportional to 172,585.48, 258,546.38 and 124,449.88

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Solution

The fourth proportional to 172,585.48, 258,546.38 and 124,449.88 is: 186,435.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,585.48 : 258,546.38 = 124,449.88 : x
  2. Step 2: Convert to fraction form
    172,585.48/258,546.38 = 124,449.88/x
  3. Step 3: Cross multiply
    172,585.48x = 258,546.38 × 124,449.88
  4. Step 4: Simplify right side
    172,585.48x = 32,176,065,965.43
  5. Step 5: Solve for x
    x = 32,176,065,965.43/172,585.48
  6. Step 6: Final answer
    x = 186,435.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.