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Finding the Fourth Proportional to 263,691.05, 363,893.48 and 142,832.06

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Solution

The fourth proportional to 263,691.05, 363,893.48 and 142,832.06 is: 197,108.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,691.05 : 363,893.48 = 142,832.06 : x
  2. Step 2: Convert to fraction form
    263,691.05/363,893.48 = 142,832.06/x
  3. Step 3: Cross multiply
    263,691.05x = 363,893.48 × 142,832.06
  4. Step 4: Simplify right side
    263,691.05x = 51,975,654,735.56
  5. Step 5: Solve for x
    x = 51,975,654,735.56/263,691.05
  6. Step 6: Final answer
    x = 197,108.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.