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Finding the Fourth Proportional to 225,183.84, 310,751.03 and 123,208.11

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Solution

The fourth proportional to 225,183.84, 310,751.03 and 123,208.11 is: 170,025.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,183.84 : 310,751.03 = 123,208.11 : x
  2. Step 2: Convert to fraction form
    225,183.84/310,751.03 = 123,208.11/x
  3. Step 3: Cross multiply
    225,183.84x = 310,751.03 × 123,208.11
  4. Step 4: Simplify right side
    225,183.84x = 38,287,047,086.85
  5. Step 5: Solve for x
    x = 38,287,047,086.85/225,183.84
  6. Step 6: Final answer
    x = 170,025.73

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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.