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Finding the Fourth Proportional to 120,959.93, 166,934.79 and 67,249.95

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Solution

The fourth proportional to 120,959.93, 166,934.79 and 67,249.95 is: 92,810.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,959.93 : 166,934.79 = 67,249.95 : x
  2. Step 2: Convert to fraction form
    120,959.93/166,934.79 = 67,249.95/x
  3. Step 3: Cross multiply
    120,959.93x = 166,934.79 × 67,249.95
  4. Step 4: Simplify right side
    120,959.93x = 11,226,356,280.76
  5. Step 5: Solve for x
    x = 11,226,356,280.76/120,959.93
  6. Step 6: Final answer
    x = 92,810.54

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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.