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Finding the Fourth Proportional to 115,686.58, 173,540.40 and 44,586.40

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Solution

The fourth proportional to 115,686.58, 173,540.40 and 44,586.40 is: 66,883.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,686.58 : 173,540.40 = 44,586.40 : x
  2. Step 2: Convert to fraction form
    115,686.58/173,540.40 = 44,586.40/x
  3. Step 3: Cross multiply
    115,686.58x = 173,540.40 × 44,586.40
  4. Step 4: Simplify right side
    115,686.58x = 7,737,541,690.56
  5. Step 5: Solve for x
    x = 7,737,541,690.56/115,686.58
  6. Step 6: Final answer
    x = 66,883.66

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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.