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Finding the Fourth Proportional to 225,491.41, 311,174.70 and 123,516.04

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Solution

The fourth proportional to 225,491.41, 311,174.70 and 123,516.04 is: 170,450.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,491.41 : 311,174.70 = 123,516.04 : x
  2. Step 2: Convert to fraction form
    225,491.41/311,174.70 = 123,516.04/x
  3. Step 3: Cross multiply
    225,491.41x = 311,174.70 × 123,516.04
  4. Step 4: Simplify right side
    225,491.41x = 38,435,066,692.19
  5. Step 5: Solve for x
    x = 38,435,066,692.19/225,491.41
  6. Step 6: Final answer
    x = 170,450.25

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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.