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Finding the Fourth Proportional to 225,449.84, 311,124.30 and 123,473.36

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Solution

The fourth proportional to 225,449.84, 311,124.30 and 123,473.36 is: 170,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,449.84 : 311,124.30 = 123,473.36 : x
  2. Step 2: Convert to fraction form
    225,449.84/311,124.30 = 123,473.36/x
  3. Step 3: Cross multiply
    225,449.84x = 311,124.30 × 123,473.36
  4. Step 4: Simplify right side
    225,449.84x = 38,415,562,698.65
  5. Step 5: Solve for x
    x = 38,415,562,698.65/225,449.84
  6. Step 6: Final answer
    x = 170,395.17

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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.