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Finding the Fourth Proportional to 68,175.87, 102,270.78 and 26,091.34

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Solution

The fourth proportional to 68,175.87, 102,270.78 and 26,091.34 is: 39,139.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,175.87 : 102,270.78 = 26,091.34 : x
  2. Step 2: Convert to fraction form
    68,175.87/102,270.78 = 26,091.34/x
  3. Step 3: Cross multiply
    68,175.87x = 102,270.78 × 26,091.34
  4. Step 4: Simplify right side
    68,175.87x = 2,668,381,437.37
  5. Step 5: Solve for x
    x = 2,668,381,437.37/68,175.87
  6. Step 6: Final answer
    x = 39,139.68

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1.5x scale

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.