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Finding the Fourth Proportional to 311,475.72, 467,334.80 and 124,540.68

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Solution

The fourth proportional to 311,475.72, 467,334.80 and 124,540.68 is: 186,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,475.72 : 467,334.80 = 124,540.68 : x
  2. Step 2: Convert to fraction form
    311,475.72/467,334.80 = 124,540.68/x
  3. Step 3: Cross multiply
    311,475.72x = 467,334.80 × 124,540.68
  4. Step 4: Simplify right side
    311,475.72x = 58,202,193,779.66
  5. Step 5: Solve for x
    x = 58,202,193,779.66/311,475.72
  6. Step 6: Final answer
    x = 186,859.49

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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.