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Finding the Fourth Proportional to 169,396.90, 253,756.58 and 101,891.65

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Solution

The fourth proportional to 169,396.90, 253,756.58 and 101,891.65 is: 152,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,396.90 : 253,756.58 = 101,891.65 : x
  2. Step 2: Convert to fraction form
    169,396.90/253,756.58 = 101,891.65/x
  3. Step 3: Cross multiply
    169,396.90x = 253,756.58 × 101,891.65
  4. Step 4: Simplify right side
    169,396.90x = 25,855,676,824.39
  5. Step 5: Solve for x
    x = 25,855,676,824.39/169,396.90
  6. Step 6: Final answer
    x = 152,633.71

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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.