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Finding the Fourth Proportional to 225,589.13, 311,308.88 and 133,770.18

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Solution

The fourth proportional to 225,589.13, 311,308.88 and 133,770.18 is: 184,600.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,589.13 : 311,308.88 = 133,770.18 : x
  2. Step 2: Convert to fraction form
    225,589.13/311,308.88 = 133,770.18/x
  3. Step 3: Cross multiply
    225,589.13x = 311,308.88 × 133,770.18
  4. Step 4: Simplify right side
    225,589.13x = 41,643,844,913.20
  5. Step 5: Solve for x
    x = 41,643,844,913.20/225,589.13
  6. Step 6: Final answer
    x = 184,600.41

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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.