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Finding the Fourth Proportional to 120,802.60, 166,709.85 and 67,092.65

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Solution

The fourth proportional to 120,802.60, 166,709.85 and 67,092.65 is: 92,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,802.60 : 166,709.85 = 67,092.65 : x
  2. Step 2: Convert to fraction form
    120,802.60/166,709.85 = 67,092.65/x
  3. Step 3: Cross multiply
    120,802.60x = 166,709.85 × 67,092.65
  4. Step 4: Simplify right side
    120,802.60x = 11,185,005,617.60
  5. Step 5: Solve for x
    x = 11,185,005,617.60/120,802.60
  6. Step 6: Final answer
    x = 92,589.11

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1.5x scale

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.