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Finding the Fourth Proportional to 146,540.28, 202,225.70 and 79,472.28

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Solution

The fourth proportional to 146,540.28, 202,225.70 and 79,472.28 is: 109,671.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,540.28 : 202,225.70 = 79,472.28 : x
  2. Step 2: Convert to fraction form
    146,540.28/202,225.70 = 79,472.28/x
  3. Step 3: Cross multiply
    146,540.28x = 202,225.70 × 79,472.28
  4. Step 4: Simplify right side
    146,540.28x = 16,071,337,453.60
  5. Step 5: Solve for x
    x = 16,071,337,453.60/146,540.28
  6. Step 6: Final answer
    x = 109,671.81

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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.