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Finding the Fourth Proportional to 172,502.38, 258,671.64 and 60,168.96

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Solution

The fourth proportional to 172,502.38, 258,671.64 and 60,168.96 is: 90,224.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,502.38 : 258,671.64 = 60,168.96 : x
  2. Step 2: Convert to fraction form
    172,502.38/258,671.64 = 60,168.96/x
  3. Step 3: Cross multiply
    172,502.38x = 258,671.64 × 60,168.96
  4. Step 4: Simplify right side
    172,502.38x = 15,564,003,560.29
  5. Step 5: Solve for x
    x = 15,564,003,560.29/172,502.38
  6. Step 6: Final answer
    x = 90,224.86

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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.