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Finding the Fourth Proportional to 120,768.93, 166,666.35 and 67,053.96

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Solution

The fourth proportional to 120,768.93, 166,666.35 and 67,053.96 is: 92,537.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,768.93 : 166,666.35 = 67,053.96 : x
  2. Step 2: Convert to fraction form
    120,768.93/166,666.35 = 67,053.96/x
  3. Step 3: Cross multiply
    120,768.93x = 166,666.35 × 67,053.96
  4. Step 4: Simplify right side
    120,768.93x = 11,175,638,766.25
  5. Step 5: Solve for x
    x = 11,175,638,766.25/120,768.93
  6. Step 6: Final answer
    x = 92,537.37

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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.