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Finding the Fourth Proportional to 146,393.85, 202,021.86 and 79,325.85

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Solution

The fourth proportional to 146,393.85, 202,021.86 and 79,325.85 is: 109,468.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,393.85 : 202,021.86 = 79,325.85 : x
  2. Step 2: Convert to fraction form
    146,393.85/202,021.86 = 79,325.85/x
  3. Step 3: Cross multiply
    146,393.85x = 202,021.86 × 79,325.85
  4. Step 4: Simplify right side
    146,393.85x = 16,025,555,763.08
  5. Step 5: Solve for x
    x = 16,025,555,763.08/146,393.85
  6. Step 6: Final answer
    x = 109,468.78

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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.