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Finding the Fourth Proportional to 136,960.16, 205,486.94 and 73,786.76

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Solution

The fourth proportional to 136,960.16, 205,486.94 and 73,786.76 is: 110,705.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,960.16 : 205,486.94 = 73,786.76 : x
  2. Step 2: Convert to fraction form
    136,960.16/205,486.94 = 73,786.76/x
  3. Step 3: Cross multiply
    136,960.16x = 205,486.94 × 73,786.76
  4. Step 4: Simplify right side
    136,960.16x = 15,162,215,524.91
  5. Step 5: Solve for x
    x = 15,162,215,524.91/136,960.16
  6. Step 6: Final answer
    x = 110,705.30

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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.