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Finding the Fourth Proportional to 225,893.04, 311,720.76 and 123,919.44

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Solution

The fourth proportional to 225,893.04, 311,720.76 and 123,919.44 is: 171,002.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,893.04 : 311,720.76 = 123,919.44 : x
  2. Step 2: Convert to fraction form
    225,893.04/311,720.76 = 123,919.44/x
  3. Step 3: Cross multiply
    225,893.04x = 311,720.76 × 123,919.44
  4. Step 4: Simplify right side
    225,893.04x = 38,628,262,015.57
  5. Step 5: Solve for x
    x = 38,628,262,015.57/225,893.04
  6. Step 6: Final answer
    x = 171,002.44

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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.