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Finding the Fourth Proportional to 225,858.68, 311,682.84 and 123,882.08

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Solution

The fourth proportional to 225,858.68, 311,682.84 and 123,882.08 is: 170,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,858.68 : 311,682.84 = 123,882.08 : x
  2. Step 2: Convert to fraction form
    225,858.68/311,682.84 = 123,882.08/x
  3. Step 3: Cross multiply
    225,858.68x = 311,682.84 × 123,882.08
  4. Step 4: Simplify right side
    225,858.68x = 38,611,918,519.51
  5. Step 5: Solve for x
    x = 38,611,918,519.51/225,858.68
  6. Step 6: Final answer
    x = 170,956.10

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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.