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Finding the Fourth Proportional to 113,751.85, 156,986.36 and 62,774.71

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Solution

The fourth proportional to 113,751.85, 156,986.36 and 62,774.71 is: 86,633.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,751.85 : 156,986.36 = 62,774.71 : x
  2. Step 2: Convert to fraction form
    113,751.85/156,986.36 = 62,774.71/x
  3. Step 3: Cross multiply
    113,751.85x = 156,986.36 × 62,774.71
  4. Step 4: Simplify right side
    113,751.85x = 9,854,773,222.96
  5. Step 5: Solve for x
    x = 9,854,773,222.96/113,751.85
  6. Step 6: Final answer
    x = 86,633.96

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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.