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Finding the Fourth Proportional to 120,626.02, 166,471.45 and 69,648.08

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Solution

The fourth proportional to 120,626.02, 166,471.45 and 69,648.08 is: 96,118.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,626.02 : 166,471.45 = 69,648.08 : x
  2. Step 2: Convert to fraction form
    120,626.02/166,471.45 = 69,648.08/x
  3. Step 3: Cross multiply
    120,626.02x = 166,471.45 × 69,648.08
  4. Step 4: Simplify right side
    120,626.02x = 11,594,416,867.32
  5. Step 5: Solve for x
    x = 11,594,416,867.32/120,626.02
  6. Step 6: Final answer
    x = 96,118.71

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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.