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Finding the Fourth Proportional to 225,535.50, 311,238.99 and 124,933.50

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Solution

The fourth proportional to 225,535.50, 311,238.99 and 124,933.50 is: 172,408.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,535.50 : 311,238.99 = 124,933.50 : x
  2. Step 2: Convert to fraction form
    225,535.50/311,238.99 = 124,933.50/x
  3. Step 3: Cross multiply
    225,535.50x = 311,238.99 × 124,933.50
  4. Step 4: Simplify right side
    225,535.50x = 38,884,176,357.17
  5. Step 5: Solve for x
    x = 38,884,176,357.17/225,535.50
  6. Step 6: Final answer
    x = 172,408.23

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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.