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Finding the Fourth Proportional to 171,967.53, 257,863.56 and 101,028.78

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Solution

The fourth proportional to 171,967.53, 257,863.56 and 101,028.78 is: 151,491.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,967.53 : 257,863.56 = 101,028.78 : x
  2. Step 2: Convert to fraction form
    171,967.53/257,863.56 = 101,028.78/x
  3. Step 3: Cross multiply
    171,967.53x = 257,863.56 × 101,028.78
  4. Step 4: Simplify right side
    171,967.53x = 26,051,640,873.26
  5. Step 5: Solve for x
    x = 26,051,640,873.26/171,967.53
  6. Step 6: Final answer
    x = 151,491.63

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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.