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Finding the Fourth Proportional to 115,994.82, 173,995.85 and 55,191.77

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Solution

The fourth proportional to 115,994.82, 173,995.85 and 55,191.77 is: 82,789.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,994.82 : 173,995.85 = 55,191.77 : x
  2. Step 2: Convert to fraction form
    115,994.82/173,995.85 = 55,191.77/x
  3. Step 3: Cross multiply
    115,994.82x = 173,995.85 × 55,191.77
  4. Step 4: Simplify right side
    115,994.82x = 9,603,138,934.15
  5. Step 5: Solve for x
    x = 9,603,138,934.15/115,994.82
  6. Step 6: Final answer
    x = 82,789.38

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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.