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Finding the Fourth Proportional to 283,571.39, 425,534.40 and 115,091.70

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Solution

The fourth proportional to 283,571.39, 425,534.40 and 115,091.70 is: 172,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,571.39 : 425,534.40 = 115,091.70 : x
  2. Step 2: Convert to fraction form
    283,571.39/425,534.40 = 115,091.70/x
  3. Step 3: Cross multiply
    283,571.39x = 425,534.40 × 115,091.70
  4. Step 4: Simplify right side
    283,571.39x = 48,975,475,908.73
  5. Step 5: Solve for x
    x = 48,975,475,908.73/283,571.39
  6. Step 6: Final answer
    x = 172,709.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.