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Finding the Fourth Proportional to 169,876.97, 234,431.78 and 93,396.60

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Solution

The fourth proportional to 169,876.97, 234,431.78 and 93,396.60 is: 128,888.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,876.97 : 234,431.78 = 93,396.60 : x
  2. Step 2: Convert to fraction form
    169,876.97/234,431.78 = 93,396.60/x
  3. Step 3: Cross multiply
    169,876.97x = 234,431.78 × 93,396.60
  4. Step 4: Simplify right side
    169,876.97x = 21,895,130,716.97
  5. Step 5: Solve for x
    x = 21,895,130,716.97/169,876.97
  6. Step 6: Final answer
    x = 128,888.17

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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.