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Finding the Fourth Proportional to 67,864.88, 101,783.20 and 25,730.44

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Solution

The fourth proportional to 67,864.88, 101,783.20 and 25,730.44 is: 38,590.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,864.88 : 101,783.20 = 25,730.44 : x
  2. Step 2: Convert to fraction form
    67,864.88/101,783.20 = 25,730.44/x
  3. Step 3: Cross multiply
    67,864.88x = 101,783.20 × 25,730.44
  4. Step 4: Simplify right side
    67,864.88x = 2,618,926,520.61
  5. Step 5: Solve for x
    x = 2,618,926,520.61/67,864.88
  6. Step 6: Final answer
    x = 38,590.31

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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.