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Finding the Fourth Proportional to 283,513.20, 425,903.40 and 236,857.20

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Solution

The fourth proportional to 283,513.20, 425,903.40 and 236,857.20 is: 355,815.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,513.20 : 425,903.40 = 236,857.20 : x
  2. Step 2: Convert to fraction form
    283,513.20/425,903.40 = 236,857.20/x
  3. Step 3: Cross multiply
    283,513.20x = 425,903.40 × 236,857.20
  4. Step 4: Simplify right side
    283,513.20x = 100,878,286,794.48
  5. Step 5: Solve for x
    x = 100,878,286,794.48/283,513.20
  6. Step 6: Final answer
    x = 355,815.13

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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.