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Finding the Fourth Proportional to 146,393.61, 202,021.50 and 79,325.61

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Solution

The fourth proportional to 146,393.61, 202,021.50 and 79,325.61 is: 109,468.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,393.61 : 202,021.50 = 79,325.61 : x
  2. Step 2: Convert to fraction form
    146,393.61/202,021.50 = 79,325.61/x
  3. Step 3: Cross multiply
    146,393.61x = 202,021.50 × 79,325.61
  4. Step 4: Simplify right side
    146,393.61x = 16,025,478,720.62
  5. Step 5: Solve for x
    x = 16,025,478,720.62/146,393.61
  6. Step 6: Final answer
    x = 109,468.43

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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.