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Finding the Fourth Proportional to 240,039.72, 331,238.16 and 132,608.88

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Solution

The fourth proportional to 240,039.72, 331,238.16 and 132,608.88 is: 182,991.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,039.72 : 331,238.16 = 132,608.88 : x
  2. Step 2: Convert to fraction form
    240,039.72/331,238.16 = 132,608.88/x
  3. Step 3: Cross multiply
    240,039.72x = 331,238.16 × 132,608.88
  4. Step 4: Simplify right side
    240,039.72x = 43,925,121,410.86
  5. Step 5: Solve for x
    x = 43,925,121,410.86/240,039.72
  6. Step 6: Final answer
    x = 182,991.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.