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Finding the Fourth Proportional to 167,838.60, 251,758.53 and 68,000.70

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Solution

The fourth proportional to 167,838.60, 251,758.53 and 68,000.70 is: 102,001.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,838.60 : 251,758.53 = 68,000.70 : x
  2. Step 2: Convert to fraction form
    167,838.60/251,758.53 = 68,000.70/x
  3. Step 3: Cross multiply
    167,838.60x = 251,758.53 × 68,000.70
  4. Step 4: Simplify right side
    167,838.60x = 17,119,756,270.97
  5. Step 5: Solve for x
    x = 17,119,756,270.97/167,838.60
  6. Step 6: Final answer
    x = 102,001.31

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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.