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Finding the Third Proportional to 74,456.50 and 109,497.50

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Solution

The third proportional to 74,456.50 and 109,497.50 is: 161,029.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,456.50 : 109,497.50 = 109,497.50 : x
  2. Step 2: Convert to fraction form
    74,456.50/109,497.50 = 109,497.50/x
  3. Step 3: Cross multiply
    74,456.50x = 109,497.50 × 109,497.50
  4. Step 4: Simplify right side
    74,456.50x = 11,989,702,506.25
  5. Step 5: Solve for x
    x = 11,989,702,506.25/74,456.50
  6. Step 6: Final answer
    x = 161,029.63

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.