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Finding the Fourth Proportional to 136,474.99, 204,775.90 and 52,207.30

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Solution

The fourth proportional to 136,474.99, 204,775.90 and 52,207.30 is: 78,335.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,474.99 : 204,775.90 = 52,207.30 : x
  2. Step 2: Convert to fraction form
    136,474.99/204,775.90 = 52,207.30/x
  3. Step 3: Cross multiply
    136,474.99x = 204,775.90 × 52,207.30
  4. Step 4: Simplify right side
    136,474.99x = 10,690,796,844.07
  5. Step 5: Solve for x
    x = 10,690,796,844.07/136,474.99
  6. Step 6: Final answer
    x = 78,335.21

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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.