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Finding the Fourth Proportional to 172,502.76, 258,672.20 and 60,169.34

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Solution

The fourth proportional to 172,502.76, 258,672.20 and 60,169.34 is: 90,225.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,502.76 : 258,672.20 = 60,169.34 : x
  2. Step 2: Convert to fraction form
    172,502.76/258,672.20 = 60,169.34/x
  3. Step 3: Cross multiply
    172,502.76x = 258,672.20 × 60,169.34
  4. Step 4: Simplify right side
    172,502.76x = 15,564,133,956.14
  5. Step 5: Solve for x
    x = 15,564,133,956.14/172,502.76
  6. Step 6: Final answer
    x = 90,225.42

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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.