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Finding the Fourth Proportional to 172,376.96, 258,565.46 and 54,057.83

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Solution

The fourth proportional to 172,376.96, 258,565.46 and 54,057.83 is: 81,086.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,376.96 : 258,565.46 = 54,057.83 : x
  2. Step 2: Convert to fraction form
    172,376.96/258,565.46 = 54,057.83/x
  3. Step 3: Cross multiply
    172,376.96x = 258,565.46 × 54,057.83
  4. Step 4: Simplify right side
    172,376.96x = 13,977,486,117.44
  5. Step 5: Solve for x
    x = 13,977,486,117.44/172,376.96
  6. Step 6: Final answer
    x = 81,086.74

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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.