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Finding the Fourth Proportional to 217,862.16, 326,653.38 and 84,600.42

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Solution

The fourth proportional to 217,862.16, 326,653.38 and 84,600.42 is: 126,846.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,862.16 : 326,653.38 = 84,600.42 : x
  2. Step 2: Convert to fraction form
    217,862.16/326,653.38 = 84,600.42/x
  3. Step 3: Cross multiply
    217,862.16x = 326,653.38 × 84,600.42
  4. Step 4: Simplify right side
    217,862.16x = 27,635,013,142.42
  5. Step 5: Solve for x
    x = 27,635,013,142.42/217,862.16
  6. Step 6: Final answer
    x = 126,846.32

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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.