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Finding the Fourth Proportional to 225,701.74, 311,385.90 and 135,060.22

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Solution

The fourth proportional to 225,701.74, 311,385.90 and 135,060.22 is: 186,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,701.74 : 311,385.90 = 135,060.22 : x
  2. Step 2: Convert to fraction form
    225,701.74/311,385.90 = 135,060.22/x
  3. Step 3: Cross multiply
    225,701.74x = 311,385.90 × 135,060.22
  4. Step 4: Simplify right side
    225,701.74x = 42,055,848,158.90
  5. Step 5: Solve for x
    x = 42,055,848,158.90/225,701.74
  6. Step 6: Final answer
    x = 186,333.73

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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.