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Finding the Fourth Proportional to 167,889.92, 251,922.40 and 74,373.80

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Solution

The fourth proportional to 167,889.92, 251,922.40 and 74,373.80 is: 111,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,889.92 : 251,922.40 = 74,373.80 : x
  2. Step 2: Convert to fraction form
    167,889.92/251,922.40 = 74,373.80/x
  3. Step 3: Cross multiply
    167,889.92x = 251,922.40 × 74,373.80
  4. Step 4: Simplify right side
    167,889.92x = 18,736,426,193.12
  5. Step 5: Solve for x
    x = 18,736,426,193.12/167,889.92
  6. Step 6: Final answer
    x = 111,599.47

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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.