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Finding the Fourth Proportional to 169,207.74, 253,843.61 and 68,013.67

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Solution

The fourth proportional to 169,207.74, 253,843.61 and 68,013.67 is: 102,033.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,207.74 : 253,843.61 = 68,013.67 : x
  2. Step 2: Convert to fraction form
    169,207.74/253,843.61 = 68,013.67/x
  3. Step 3: Cross multiply
    169,207.74x = 253,843.61 × 68,013.67
  4. Step 4: Simplify right side
    169,207.74x = 17,264,835,522.15
  5. Step 5: Solve for x
    x = 17,264,835,522.15/169,207.74
  6. Step 6: Final answer
    x = 102,033.37

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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.