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Finding the Fourth Proportional to 192,912.30, 266,218.92 and 106,876.87

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Solution

The fourth proportional to 192,912.30, 266,218.92 and 106,876.87 is: 147,490.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,912.30 : 266,218.92 = 106,876.87 : x
  2. Step 2: Convert to fraction form
    192,912.30/266,218.92 = 106,876.87/x
  3. Step 3: Cross multiply
    192,912.30x = 266,218.92 × 106,876.87
  4. Step 4: Simplify right side
    192,912.30x = 28,452,644,238.83
  5. Step 5: Solve for x
    x = 28,452,644,238.83/192,912.30
  6. Step 6: Final answer
    x = 147,490.05

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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.