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Finding the Fourth Proportional to 120,959.60, 166,929.95 and 67,245.52

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Solution

The fourth proportional to 120,959.60, 166,929.95 and 67,245.52 is: 92,801.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,959.60 : 166,929.95 = 67,245.52 : x
  2. Step 2: Convert to fraction form
    120,959.60/166,929.95 = 67,245.52/x
  3. Step 3: Cross multiply
    120,959.60x = 166,929.95 × 67,245.52
  4. Step 4: Simplify right side
    120,959.60x = 11,225,291,291.32
  5. Step 5: Solve for x
    x = 11,225,291,291.32/120,959.60
  6. Step 6: Final answer
    x = 92,801.99

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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.