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Finding the Fourth Proportional to 283,515.20, 425,906.40 and 236,859.20

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Solution

The fourth proportional to 283,515.20, 425,906.40 and 236,859.20 is: 355,818.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,515.20 : 425,906.40 = 236,859.20 : x
  2. Step 2: Convert to fraction form
    283,515.20/425,906.40 = 236,859.20/x
  3. Step 3: Cross multiply
    283,515.20x = 425,906.40 × 236,859.20
  4. Step 4: Simplify right side
    283,515.20x = 100,879,849,178.88
  5. Step 5: Solve for x
    x = 100,879,849,178.88/283,515.20
  6. Step 6: Final answer
    x = 355,818.13

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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.