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Finding the Fourth Proportional to 172,293.48, 258,440.22 and 53,974.08

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Solution

The fourth proportional to 172,293.48, 258,440.22 and 53,974.08 is: 80,961.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,293.48 : 258,440.22 = 53,974.08 : x
  2. Step 2: Convert to fraction form
    172,293.48/258,440.22 = 53,974.08/x
  3. Step 3: Cross multiply
    172,293.48x = 258,440.22 × 53,974.08
  4. Step 4: Simplify right side
    172,293.48x = 13,949,073,109.50
  5. Step 5: Solve for x
    x = 13,949,073,109.50/172,293.48
  6. Step 6: Final answer
    x = 80,961.12

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Similar ratio
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1.5x scale

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.