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Finding the Fourth Proportional to 171,449.26, 257,101.59 and 64,815.22

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Solution

The fourth proportional to 171,449.26, 257,101.59 and 64,815.22 is: 97,195.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,449.26 : 257,101.59 = 64,815.22 : x
  2. Step 2: Convert to fraction form
    171,449.26/257,101.59 = 64,815.22/x
  3. Step 3: Cross multiply
    171,449.26x = 257,101.59 × 64,815.22
  4. Step 4: Simplify right side
    171,449.26x = 16,664,096,118.20
  5. Step 5: Solve for x
    x = 16,664,096,118.20/171,449.26
  6. Step 6: Final answer
    x = 97,195.50

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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.