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Finding the Fourth Proportional to 119,410.81, 164,788.26 and 68,422.52

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Solution

The fourth proportional to 119,410.81, 164,788.26 and 68,422.52 is: 94,423.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,410.81 : 164,788.26 = 68,422.52 : x
  2. Step 2: Convert to fraction form
    119,410.81/164,788.26 = 68,422.52/x
  3. Step 3: Cross multiply
    119,410.81x = 164,788.26 × 68,422.52
  4. Step 4: Simplify right side
    119,410.81x = 11,275,228,015.62
  5. Step 5: Solve for x
    x = 11,275,228,015.62/119,410.81
  6. Step 6: Final answer
    x = 94,423.85

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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.