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Finding the Fourth Proportional to 167,811.80, 251,717.70 and 161,360.60

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Solution

The fourth proportional to 167,811.80, 251,717.70 and 161,360.60 is: 242,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,811.80 : 251,717.70 = 161,360.60 : x
  2. Step 2: Convert to fraction form
    167,811.80/251,717.70 = 161,360.60/x
  3. Step 3: Cross multiply
    167,811.80x = 251,717.70 × 161,360.60
  4. Step 4: Simplify right side
    167,811.80x = 40,617,319,102.62
  5. Step 5: Solve for x
    x = 40,617,319,102.62/167,811.80
  6. Step 6: Final answer
    x = 242,040.90

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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.