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Finding the Fourth Proportional to 60,964.92, 84,129.66 and 34,107.90

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Solution

The fourth proportional to 60,964.92, 84,129.66 and 34,107.90 is: 47,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,964.92 : 84,129.66 = 34,107.90 : x
  2. Step 2: Convert to fraction form
    60,964.92/84,129.66 = 34,107.90/x
  3. Step 3: Cross multiply
    60,964.92x = 84,129.66 × 34,107.90
  4. Step 4: Simplify right side
    60,964.92x = 2,869,486,030.31
  5. Step 5: Solve for x
    x = 2,869,486,030.31/60,964.92
  6. Step 6: Final answer
    x = 47,067.82

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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.