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Finding the Fourth Proportional to 167,641.40, 251,753.70 and 162,392.60

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Solution

The fourth proportional to 167,641.40, 251,753.70 and 162,392.60 is: 243,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,641.40 : 251,753.70 = 162,392.60 : x
  2. Step 2: Convert to fraction form
    167,641.40/251,753.70 = 162,392.60/x
  3. Step 3: Cross multiply
    167,641.40x = 251,753.70 × 162,392.60
  4. Step 4: Simplify right side
    167,641.40x = 40,882,937,902.62
  5. Step 5: Solve for x
    x = 40,882,937,902.62/167,641.40
  6. Step 6: Final answer
    x = 243,871.37

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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.