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Finding the Fourth Proportional to 192,858.98, 288,115.66 and 124,836.89

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Solution

The fourth proportional to 192,858.98, 288,115.66 and 124,836.89 is: 186,496.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,858.98 : 288,115.66 = 124,836.89 : x
  2. Step 2: Convert to fraction form
    192,858.98/288,115.66 = 124,836.89/x
  3. Step 3: Cross multiply
    192,858.98x = 288,115.66 × 124,836.89
  4. Step 4: Simplify right side
    192,858.98x = 35,967,462,954.70
  5. Step 5: Solve for x
    x = 35,967,462,954.70/192,858.98
  6. Step 6: Final answer
    x = 186,496.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.