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Finding the Fourth Proportional to 115,633.40, 173,454.90 and 36,745.40

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Solution

The fourth proportional to 115,633.40, 173,454.90 and 36,745.40 is: 55,119.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,633.40 : 173,454.90 = 36,745.40 : x
  2. Step 2: Convert to fraction form
    115,633.40/173,454.90 = 36,745.40/x
  3. Step 3: Cross multiply
    115,633.40x = 173,454.90 × 36,745.40
  4. Step 4: Simplify right side
    115,633.40x = 6,373,669,682.46
  5. Step 5: Solve for x
    x = 6,373,669,682.46/115,633.40
  6. Step 6: Final answer
    x = 55,119.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.