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Finding the Fourth Proportional to 268,679.46, 370,764.09 and 161,228.10

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Solution

The fourth proportional to 268,679.46, 370,764.09 and 161,228.10 is: 222,486.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,679.46 : 370,764.09 = 161,228.10 : x
  2. Step 2: Convert to fraction form
    268,679.46/370,764.09 = 161,228.10/x
  3. Step 3: Cross multiply
    268,679.46x = 370,764.09 × 161,228.10
  4. Step 4: Simplify right side
    268,679.46x = 59,777,589,778.93
  5. Step 5: Solve for x
    x = 59,777,589,778.93/268,679.46
  6. Step 6: Final answer
    x = 222,486.64

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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.