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Finding the Fourth Proportional to 169,257.33, 253,511.62 and 69,113.84

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Solution

The fourth proportional to 169,257.33, 253,511.62 and 69,113.84 is: 103,517.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,257.33 : 253,511.62 = 69,113.84 : x
  2. Step 2: Convert to fraction form
    169,257.33/253,511.62 = 69,113.84/x
  3. Step 3: Cross multiply
    169,257.33x = 253,511.62 × 69,113.84
  4. Step 4: Simplify right side
    169,257.33x = 17,521,161,542.82
  5. Step 5: Solve for x
    x = 17,521,161,542.82/169,257.33
  6. Step 6: Final answer
    x = 103,517.89

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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.