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Finding the Fourth Proportional to 172,471.35, 237,806.85 and 118,049.74

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Solution

The fourth proportional to 172,471.35, 237,806.85 and 118,049.74 is: 162,769.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,471.35 : 237,806.85 = 118,049.74 : x
  2. Step 2: Convert to fraction form
    172,471.35/237,806.85 = 118,049.74/x
  3. Step 3: Cross multiply
    172,471.35x = 237,806.85 × 118,049.74
  4. Step 4: Simplify right side
    172,471.35x = 28,073,036,812.72
  5. Step 5: Solve for x
    x = 28,073,036,812.72/172,471.35
  6. Step 6: Final answer
    x = 162,769.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.