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Finding the Fourth Proportional to 225,856.72, 311,674.44 and 125,264.08

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Solution

The fourth proportional to 225,856.72, 311,674.44 and 125,264.08 is: 172,860.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,856.72 : 311,674.44 = 125,264.08 : x
  2. Step 2: Convert to fraction form
    225,856.72/311,674.44 = 125,264.08/x
  3. Step 3: Cross multiply
    225,856.72x = 311,674.44 × 125,264.08
  4. Step 4: Simplify right side
    225,856.72x = 39,041,611,986.12
  5. Step 5: Solve for x
    x = 39,041,611,986.12/225,856.72
  6. Step 6: Final answer
    x = 172,860.09

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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.