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Finding the Fourth Proportional to 198,452.70, 273,863.63 and 107,807.93

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Solution

The fourth proportional to 198,452.70, 273,863.63 and 107,807.93 is: 148,774.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,452.70 : 273,863.63 = 107,807.93 : x
  2. Step 2: Convert to fraction form
    198,452.70/273,863.63 = 107,807.93/x
  3. Step 3: Cross multiply
    198,452.70x = 273,863.63 × 107,807.93
  4. Step 4: Simplify right side
    198,452.70x = 29,524,670,979.78
  5. Step 5: Solve for x
    x = 29,524,670,979.78/198,452.70
  6. Step 6: Final answer
    x = 148,774.35

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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.