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Finding the Fourth Proportional to 164,600.20, 246,908.40 and 85,868.20

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Solution

The fourth proportional to 164,600.20, 246,908.40 and 85,868.20 is: 128,806.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,600.20 : 246,908.40 = 85,868.20 : x
  2. Step 2: Convert to fraction form
    164,600.20/246,908.40 = 85,868.20/x
  3. Step 3: Cross multiply
    164,600.20x = 246,908.40 × 85,868.20
  4. Step 4: Simplify right side
    164,600.20x = 21,201,579,872.88
  5. Step 5: Solve for x
    x = 21,201,579,872.88/164,600.20
  6. Step 6: Final answer
    x = 128,806.53

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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.