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Finding the Fourth Proportional to 283,212.82, 425,081.76 and 143,069.86

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Solution

The fourth proportional to 283,212.82, 425,081.76 and 143,069.86 is: 214,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,212.82 : 425,081.76 = 143,069.86 : x
  2. Step 2: Convert to fraction form
    283,212.82/425,081.76 = 143,069.86/x
  3. Step 3: Cross multiply
    283,212.82x = 425,081.76 × 143,069.86
  4. Step 4: Simplify right side
    283,212.82x = 60,816,387,891.75
  5. Step 5: Solve for x
    x = 60,816,387,891.75/283,212.82
  6. Step 6: Final answer
    x = 214,737.41

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1.5x scale

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.