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Finding the Fourth Proportional to 220,863.15, 304,782.83 and 134,965.76

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Solution

The fourth proportional to 220,863.15, 304,782.83 and 134,965.76 is: 186,247.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,863.15 : 304,782.83 = 134,965.76 : x
  2. Step 2: Convert to fraction form
    220,863.15/304,782.83 = 134,965.76/x
  3. Step 3: Cross multiply
    220,863.15x = 304,782.83 × 134,965.76
  4. Step 4: Simplify right side
    220,863.15x = 41,135,247,385.27
  5. Step 5: Solve for x
    x = 41,135,247,385.27/220,863.15
  6. Step 6: Final answer
    x = 186,247.67

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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.