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Finding the Fourth Proportional to 66,085.87, 99,227.21 and 26,719.87

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Solution

The fourth proportional to 66,085.87, 99,227.21 and 26,719.87 is: 40,119.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,085.87 : 99,227.21 = 26,719.87 : x
  2. Step 2: Convert to fraction form
    66,085.87/99,227.21 = 26,719.87/x
  3. Step 3: Cross multiply
    66,085.87x = 99,227.21 × 26,719.87
  4. Step 4: Simplify right side
    66,085.87x = 2,651,337,970.39
  5. Step 5: Solve for x
    x = 2,651,337,970.39/66,085.87
  6. Step 6: Final answer
    x = 40,119.59

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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.