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Finding the Fourth Proportional to 240,086.88, 360,066.96 and 71,561.76

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Solution

The fourth proportional to 240,086.88, 360,066.96 and 71,561.76 is: 107,323.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,086.88 : 360,066.96 = 71,561.76 : x
  2. Step 2: Convert to fraction form
    240,086.88/360,066.96 = 71,561.76/x
  3. Step 3: Cross multiply
    240,086.88x = 360,066.96 × 71,561.76
  4. Step 4: Simplify right side
    240,086.88x = 25,767,025,375.45
  5. Step 5: Solve for x
    x = 25,767,025,375.45/240,086.88
  6. Step 6: Final answer
    x = 107,323.75

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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.