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Finding the Fourth Proportional to 120,737.40, 166,609.28 and 67,018.19

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Solution

The fourth proportional to 120,737.40, 166,609.28 and 67,018.19 is: 92,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,737.40 : 166,609.28 = 67,018.19 : x
  2. Step 2: Convert to fraction form
    120,737.40/166,609.28 = 67,018.19/x
  3. Step 3: Cross multiply
    120,737.40x = 166,609.28 × 67,018.19
  4. Step 4: Simplify right side
    120,737.40x = 11,165,852,342.09
  5. Step 5: Solve for x
    x = 11,165,852,342.09/120,737.40
  6. Step 6: Final answer
    x = 92,480.48

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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.