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Finding the Fourth Proportional to 281,588.01, 422,378.18 and 68,357.56

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Solution

The fourth proportional to 281,588.01, 422,378.18 and 68,357.56 is: 102,535.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,588.01 : 422,378.18 = 68,357.56 : x
  2. Step 2: Convert to fraction form
    281,588.01/422,378.18 = 68,357.56/x
  3. Step 3: Cross multiply
    281,588.01x = 422,378.18 × 68,357.56
  4. Step 4: Simplify right side
    281,588.01x = 28,872,741,782.04
  5. Step 5: Solve for x
    x = 28,872,741,782.04/281,588.01
  6. Step 6: Final answer
    x = 102,535.41

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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.