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Finding the Fourth Proportional to 208,744.97, 313,101.05 and 58,979.21

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Solution

The fourth proportional to 208,744.97, 313,101.05 and 58,979.21 is: 88,464.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,744.97 : 313,101.05 = 58,979.21 : x
  2. Step 2: Convert to fraction form
    208,744.97/313,101.05 = 58,979.21/x
  3. Step 3: Cross multiply
    208,744.97x = 313,101.05 × 58,979.21
  4. Step 4: Simplify right side
    208,744.97x = 18,466,450,718.77
  5. Step 5: Solve for x
    x = 18,466,450,718.77/208,744.97
  6. Step 6: Final answer
    x = 88,464.17

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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.