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Finding the Fourth Proportional to 113,758.76, 156,986.04 and 62,771.96

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Solution

The fourth proportional to 113,758.76, 156,986.04 and 62,771.96 is: 86,624.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,758.76 : 156,986.04 = 62,771.96 : x
  2. Step 2: Convert to fraction form
    113,758.76/156,986.04 = 62,771.96/x
  3. Step 3: Cross multiply
    113,758.76x = 156,986.04 × 62,771.96
  4. Step 4: Simplify right side
    113,758.76x = 9,854,321,423.44
  5. Step 5: Solve for x
    x = 9,854,321,423.44/113,758.76
  6. Step 6: Final answer
    x = 86,624.73

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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.