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Finding the Fourth Proportional to 146,649.45, 202,376.22 and 79,581.45

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Solution

The fourth proportional to 146,649.45, 202,376.22 and 79,581.45 is: 109,822.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,649.45 : 202,376.22 = 79,581.45 : x
  2. Step 2: Convert to fraction form
    146,649.45/202,376.22 = 79,581.45/x
  3. Step 3: Cross multiply
    146,649.45x = 202,376.22 × 79,581.45
  4. Step 4: Simplify right side
    146,649.45x = 16,105,393,033.12
  5. Step 5: Solve for x
    x = 16,105,393,033.12/146,649.45
  6. Step 6: Final answer
    x = 109,822.39

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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.