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Finding the Fourth Proportional to 181,061.40, 271,640.70 and 161,475.60

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Solution

The fourth proportional to 181,061.40, 271,640.70 and 161,475.60 is: 242,256.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,061.40 : 271,640.70 = 161,475.60 : x
  2. Step 2: Convert to fraction form
    181,061.40/271,640.70 = 161,475.60/x
  3. Step 3: Cross multiply
    181,061.40x = 271,640.70 × 161,475.60
  4. Step 4: Simplify right side
    181,061.40x = 43,863,345,016.92
  5. Step 5: Solve for x
    x = 43,863,345,016.92/181,061.40
  6. Step 6: Final answer
    x = 242,256.74

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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.