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Finding the Fourth Proportional to 120,766.70, 166,663.25 and 67,051.71

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Solution

The fourth proportional to 120,766.70, 166,663.25 and 67,051.71 is: 92,534.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,766.70 : 166,663.25 = 67,051.71 : x
  2. Step 2: Convert to fraction form
    120,766.70/166,663.25 = 67,051.71/x
  3. Step 3: Cross multiply
    120,766.70x = 166,663.25 × 67,051.71
  4. Step 4: Simplify right side
    120,766.70x = 11,175,055,571.40
  5. Step 5: Solve for x
    x = 11,175,055,571.40/120,766.70
  6. Step 6: Final answer
    x = 92,534.25

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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.