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Finding the Third Proportional to 85,595.50 and 128,652

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Solution

The third proportional to 85,595.50 and 128,652 is: 193,366.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,595.50 : 128,652 = 128,652 : x
  2. Step 2: Convert to fraction form
    85,595.50/128,652 = 128,652/x
  3. Step 3: Cross multiply
    85,595.50x = 128,652 × 128,652
  4. Step 4: Simplify right side
    85,595.50x = 16,551,337,104
  5. Step 5: Solve for x
    x = 16,551,337,104/85,595.50
  6. Step 6: Final answer
    x = 193,366.91

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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.