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Finding the Fourth Proportional to 120,737.51, 166,609.43 and 67,018.30

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Solution

The fourth proportional to 120,737.51, 166,609.43 and 67,018.30 is: 92,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,737.51 : 166,609.43 = 67,018.30 : x
  2. Step 2: Convert to fraction form
    120,737.51/166,609.43 = 67,018.30/x
  3. Step 3: Cross multiply
    120,737.51x = 166,609.43 × 67,018.30
  4. Step 4: Simplify right side
    120,737.51x = 11,165,880,930.11
  5. Step 5: Solve for x
    x = 11,165,880,930.11/120,737.51
  6. Step 6: Final answer
    x = 92,480.63

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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.