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Finding the Fourth Proportional to 283,340.63, 425,112.10 and 133,602.21

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Solution

The fourth proportional to 283,340.63, 425,112.10 and 133,602.21 is: 200,451.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,340.63 : 425,112.10 = 133,602.21 : x
  2. Step 2: Convert to fraction form
    283,340.63/425,112.10 = 133,602.21/x
  3. Step 3: Cross multiply
    283,340.63x = 425,112.10 × 133,602.21
  4. Step 4: Simplify right side
    283,340.63x = 56,795,915,723.74
  5. Step 5: Solve for x
    x = 56,795,915,723.74/283,340.63
  6. Step 6: Final answer
    x = 200,451.01

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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.