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Finding the Fourth Proportional to 279,191.98, 418,926.36 and 110,708.70

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Solution

The fourth proportional to 279,191.98, 418,926.36 and 110,708.70 is: 166,117.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,191.98 : 418,926.36 = 110,708.70 : x
  2. Step 2: Convert to fraction form
    279,191.98/418,926.36 = 110,708.70/x
  3. Step 3: Cross multiply
    279,191.98x = 418,926.36 × 110,708.70
  4. Step 4: Simplify right side
    279,191.98x = 46,378,792,711.33
  5. Step 5: Solve for x
    x = 46,378,792,711.33/279,191.98
  6. Step 6: Final answer
    x = 166,117.93

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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.