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Finding the Third Proportional to 166,257.50 and 257,963

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Solution

The third proportional to 166,257.50 and 257,963 is: 400,252.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,257.50 : 257,963 = 257,963 : x
  2. Step 2: Convert to fraction form
    166,257.50/257,963 = 257,963/x
  3. Step 3: Cross multiply
    166,257.50x = 257,963 × 257,963
  4. Step 4: Simplify right side
    166,257.50x = 66,544,909,369
  5. Step 5: Solve for x
    x = 66,544,909,369/166,257.50
  6. Step 6: Final answer
    x = 400,252.08

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.