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Finding the Fourth Proportional to 221,073.17, 331,674.34 and 71,310.14

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Solution

The fourth proportional to 221,073.17, 331,674.34 and 71,310.14 is: 106,986.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,073.17 : 331,674.34 = 71,310.14 : x
  2. Step 2: Convert to fraction form
    221,073.17/331,674.34 = 71,310.14/x
  3. Step 3: Cross multiply
    221,073.17x = 331,674.34 × 71,310.14
  4. Step 4: Simplify right side
    221,073.17x = 23,651,743,619.81
  5. Step 5: Solve for x
    x = 23,651,743,619.81/221,073.17
  6. Step 6: Final answer
    x = 106,986.04

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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.