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Finding the Fourth Proportional to 120,888.99, 166,826.66 and 67,179.24

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Solution

The fourth proportional to 120,888.99, 166,826.66 and 67,179.24 is: 92,707.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,888.99 : 166,826.66 = 67,179.24 : x
  2. Step 2: Convert to fraction form
    120,888.99/166,826.66 = 67,179.24/x
  3. Step 3: Cross multiply
    120,888.99x = 166,826.66 × 67,179.24
  4. Step 4: Simplify right side
    120,888.99x = 11,207,287,894.64
  5. Step 5: Solve for x
    x = 11,207,287,894.64/120,888.99
  6. Step 6: Final answer
    x = 92,707.27

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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.