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Finding the Fourth Proportional to 104,908.79, 144,770.06 and 57,162.49

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Solution

The fourth proportional to 104,908.79, 144,770.06 and 57,162.49 is: 78,882.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,908.79 : 144,770.06 = 57,162.49 : x
  2. Step 2: Convert to fraction form
    104,908.79/144,770.06 = 57,162.49/x
  3. Step 3: Cross multiply
    104,908.79x = 144,770.06 × 57,162.49
  4. Step 4: Simplify right side
    104,908.79x = 8,275,417,107.05
  5. Step 5: Solve for x
    x = 8,275,417,107.05/104,908.79
  6. Step 6: Final answer
    x = 78,882.02

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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.