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Finding the Fourth Proportional to 70,786.58, 106,085.50 and 26,368.61

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Solution

The fourth proportional to 70,786.58, 106,085.50 and 26,368.61 is: 39,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,786.58 : 106,085.50 = 26,368.61 : x
  2. Step 2: Convert to fraction form
    70,786.58/106,085.50 = 26,368.61/x
  3. Step 3: Cross multiply
    70,786.58x = 106,085.50 × 26,368.61
  4. Step 4: Simplify right side
    70,786.58x = 2,797,326,579.81
  5. Step 5: Solve for x
    x = 2,797,326,579.81/70,786.58
  6. Step 6: Final answer
    x = 39,517.76

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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.