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Finding the Fourth Proportional to 171,791.01, 257,682.29 and 66,610.01

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Solution

The fourth proportional to 171,791.01, 257,682.29 and 66,610.01 is: 99,913.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,791.01 : 257,682.29 = 66,610.01 : x
  2. Step 2: Convert to fraction form
    171,791.01/257,682.29 = 66,610.01/x
  3. Step 3: Cross multiply
    171,791.01x = 257,682.29 × 66,610.01
  4. Step 4: Simplify right side
    171,791.01x = 17,164,219,913.72
  5. Step 5: Solve for x
    x = 17,164,219,913.72/171,791.01
  6. Step 6: Final answer
    x = 99,913.38

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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.