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Finding the Fourth Proportional to 172,327.68, 258,494.76 and 53,996.40

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Solution

The fourth proportional to 172,327.68, 258,494.76 and 53,996.40 is: 80,995.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,327.68 : 258,494.76 = 53,996.40 : x
  2. Step 2: Convert to fraction form
    172,327.68/258,494.76 = 53,996.40/x
  3. Step 3: Cross multiply
    172,327.68x = 258,494.76 × 53,996.40
  4. Step 4: Simplify right side
    172,327.68x = 13,957,786,458.86
  5. Step 5: Solve for x
    x = 13,957,786,458.86/172,327.68
  6. Step 6: Final answer
    x = 80,995.62

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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.