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Finding the Fourth Proportional to 120,846.18, 166,763.04 and 67,134.60

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Solution

The fourth proportional to 120,846.18, 166,763.04 and 67,134.60 is: 92,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,846.18 : 166,763.04 = 67,134.60 : x
  2. Step 2: Convert to fraction form
    120,846.18/166,763.04 = 67,134.60/x
  3. Step 3: Cross multiply
    120,846.18x = 166,763.04 × 67,134.60
  4. Step 4: Simplify right side
    120,846.18x = 11,195,569,985.18
  5. Step 5: Solve for x
    x = 11,195,569,985.18/120,846.18
  6. Step 6: Final answer
    x = 92,643.14

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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.