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Finding the Fourth Proportional to 168,789, 253,145.84 and 50,444.97

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Solution

The fourth proportional to 168,789, 253,145.84 and 50,444.97 is: 75,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,789 : 253,145.84 = 50,444.97 : x
  2. Step 2: Convert to fraction form
    168,789/253,145.84 = 50,444.97/x
  3. Step 3: Cross multiply
    168,789x = 253,145.84 × 50,444.97
  4. Step 4: Simplify right side
    168,789x = 12,769,934,304.42
  5. Step 5: Solve for x
    x = 12,769,934,304.42/168,789
  6. Step 6: Final answer
    x = 75,656.20

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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.