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Finding the Fourth Proportional to 218,147.78, 327,305.51 and 76,008.27

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Solution

The fourth proportional to 218,147.78, 327,305.51 and 76,008.27 is: 114,041.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,147.78 : 327,305.51 = 76,008.27 : x
  2. Step 2: Convert to fraction form
    218,147.78/327,305.51 = 76,008.27/x
  3. Step 3: Cross multiply
    218,147.78x = 327,305.51 × 76,008.27
  4. Step 4: Simplify right side
    218,147.78x = 24,877,926,708.95
  5. Step 5: Solve for x
    x = 24,877,926,708.95/218,147.78
  6. Step 6: Final answer
    x = 114,041.62

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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.