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Finding the Fourth Proportional to 283,487.66, 425,017.68 and 171,141.18

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Solution

The fourth proportional to 283,487.66, 425,017.68 and 171,141.18 is: 256,582.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,487.66 : 425,017.68 = 171,141.18 : x
  2. Step 2: Convert to fraction form
    283,487.66/425,017.68 = 171,141.18/x
  3. Step 3: Cross multiply
    283,487.66x = 425,017.68 × 171,141.18
  4. Step 4: Simplify right side
    283,487.66x = 72,738,026,855.30
  5. Step 5: Solve for x
    x = 72,738,026,855.30/283,487.66
  6. Step 6: Final answer
    x = 256,582.69

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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.