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Finding the Third Proportional to 117,299.25 and 257,926.50

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Solution

The third proportional to 117,299.25 and 257,926.50 is: 567,148.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,299.25 : 257,926.50 = 257,926.50 : x
  2. Step 2: Convert to fraction form
    117,299.25/257,926.50 = 257,926.50/x
  3. Step 3: Cross multiply
    117,299.25x = 257,926.50 × 257,926.50
  4. Step 4: Simplify right side
    117,299.25x = 66,526,079,402.25
  5. Step 5: Solve for x
    x = 66,526,079,402.25/117,299.25
  6. Step 6: Final answer
    x = 567,148.38

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.