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Finding the Fourth Proportional to 225,288.70, 311,027.79 and 168,242.56

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Solution

The fourth proportional to 225,288.70, 311,027.79 and 168,242.56 is: 232,271.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,288.70 : 311,027.79 = 168,242.56 : x
  2. Step 2: Convert to fraction form
    225,288.70/311,027.79 = 168,242.56/x
  3. Step 3: Cross multiply
    225,288.70x = 311,027.79 × 168,242.56
  4. Step 4: Simplify right side
    225,288.70x = 52,328,111,620.74
  5. Step 5: Solve for x
    x = 52,328,111,620.74/225,288.70
  6. Step 6: Final answer
    x = 232,271.36

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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.