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Finding the Fourth Proportional to 318,024.44, 477,034.23 and 81,366.74

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Solution

The fourth proportional to 318,024.44, 477,034.23 and 81,366.74 is: 122,049.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,024.44 : 477,034.23 = 81,366.74 : x
  2. Step 2: Convert to fraction form
    318,024.44/477,034.23 = 81,366.74/x
  3. Step 3: Cross multiply
    318,024.44x = 477,034.23 × 81,366.74
  4. Step 4: Simplify right side
    318,024.44x = 38,814,720,163.51
  5. Step 5: Solve for x
    x = 38,814,720,163.51/318,024.44
  6. Step 6: Final answer
    x = 122,049.49

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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.