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Finding the Fourth Proportional to 263,652.01, 363,837.67 and 142,790.51

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Solution

The fourth proportional to 263,652.01, 363,837.67 and 142,790.51 is: 197,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,652.01 : 363,837.67 = 142,790.51 : x
  2. Step 2: Convert to fraction form
    263,652.01/363,837.67 = 142,790.51/x
  3. Step 3: Cross multiply
    263,652.01x = 363,837.67 × 142,790.51
  4. Step 4: Simplify right side
    263,652.01x = 51,952,566,456.51
  5. Step 5: Solve for x
    x = 51,952,566,456.51/263,652.01
  6. Step 6: Final answer
    x = 197,049.76

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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.