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Finding the Fourth Proportional to 123,161.96, 169,949.06 and 69,443.77

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Solution

The fourth proportional to 123,161.96, 169,949.06 and 69,443.77 is: 95,824.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,161.96 : 169,949.06 = 69,443.77 : x
  2. Step 2: Convert to fraction form
    123,161.96/169,949.06 = 69,443.77/x
  3. Step 3: Cross multiply
    123,161.96x = 169,949.06 × 69,443.77
  4. Step 4: Simplify right side
    123,161.96x = 11,801,902,922.68
  5. Step 5: Solve for x
    x = 11,801,902,922.68/123,161.96
  6. Step 6: Final answer
    x = 95,824.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.