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Finding the Fourth Proportional to 225,574.47, 311,299.40 and 123,608.94

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Solution

The fourth proportional to 225,574.47, 311,299.40 and 123,608.94 is: 170,583.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,574.47 : 311,299.40 = 123,608.94 : x
  2. Step 2: Convert to fraction form
    225,574.47/311,299.40 = 123,608.94/x
  3. Step 3: Cross multiply
    225,574.47x = 311,299.40 × 123,608.94
  4. Step 4: Simplify right side
    225,574.47x = 38,479,387,998.29
  5. Step 5: Solve for x
    x = 38,479,387,998.29/225,574.47
  6. Step 6: Final answer
    x = 170,583.97

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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.