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Finding the Fourth Proportional to 169,185.92, 253,780.68 and 69,320.48

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Solution

The fourth proportional to 169,185.92, 253,780.68 and 69,320.48 is: 103,981.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,185.92 : 253,780.68 = 69,320.48 : x
  2. Step 2: Convert to fraction form
    169,185.92/253,780.68 = 69,320.48/x
  3. Step 3: Cross multiply
    169,185.92x = 253,780.68 × 69,320.48
  4. Step 4: Simplify right side
    169,185.92x = 17,592,198,552.33
  5. Step 5: Solve for x
    x = 17,592,198,552.33/169,185.92
  6. Step 6: Final answer
    x = 103,981.46

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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.