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Finding the Fourth Proportional to 225,679.53, 311,443.89 and 162,136.26

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Solution

The fourth proportional to 225,679.53, 311,443.89 and 162,136.26 is: 223,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,679.53 : 311,443.89 = 162,136.26 : x
  2. Step 2: Convert to fraction form
    225,679.53/311,443.89 = 162,136.26/x
  3. Step 3: Cross multiply
    225,679.53x = 311,443.89 × 162,136.26
  4. Step 4: Simplify right side
    225,679.53x = 50,496,347,524.45
  5. Step 5: Solve for x
    x = 50,496,347,524.45/225,679.53
  6. Step 6: Final answer
    x = 223,752.45

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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.