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Finding the Fourth Proportional to 120,846.15, 166,762.03 and 67,134.44

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Solution

The fourth proportional to 120,846.15, 166,762.03 and 67,134.44 is: 92,642.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,846.15 : 166,762.03 = 67,134.44 : x
  2. Step 2: Convert to fraction form
    120,846.15/166,762.03 = 67,134.44/x
  3. Step 3: Cross multiply
    120,846.15x = 166,762.03 × 67,134.44
  4. Step 4: Simplify right side
    120,846.15x = 11,195,475,746.38
  5. Step 5: Solve for x
    x = 11,195,475,746.38/120,846.15
  6. Step 6: Final answer
    x = 92,642.39

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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.