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Finding the Fourth Proportional to 167,838.54, 251,756.19 and 79,043.46

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Solution

The fourth proportional to 167,838.54, 251,756.19 and 79,043.46 is: 118,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,838.54 : 251,756.19 = 79,043.46 : x
  2. Step 2: Convert to fraction form
    167,838.54/251,756.19 = 79,043.46/x
  3. Step 3: Cross multiply
    167,838.54x = 251,756.19 × 79,043.46
  4. Step 4: Simplify right side
    167,838.54x = 19,899,680,334.02
  5. Step 5: Solve for x
    x = 19,899,680,334.02/167,838.54
  6. Step 6: Final answer
    x = 118,564.43

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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.