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Finding the Third Proportional to 161,203.50 and 260,440.50

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Solution

The third proportional to 161,203.50 and 260,440.50 is: 420,767.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,203.50 : 260,440.50 = 260,440.50 : x
  2. Step 2: Convert to fraction form
    161,203.50/260,440.50 = 260,440.50/x
  3. Step 3: Cross multiply
    161,203.50x = 260,440.50 × 260,440.50
  4. Step 4: Simplify right side
    161,203.50x = 67,829,254,040.25
  5. Step 5: Solve for x
    x = 67,829,254,040.25/161,203.50
  6. Step 6: Final answer
    x = 420,767.87

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.