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Finding the Third Proportional to 36,147.09 and 78,445.13

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Solution

The third proportional to 36,147.09 and 78,445.13 is: 170,238.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,147.09 : 78,445.13 = 78,445.13 : x
  2. Step 2: Convert to fraction form
    36,147.09/78,445.13 = 78,445.13/x
  3. Step 3: Cross multiply
    36,147.09x = 78,445.13 × 78,445.13
  4. Step 4: Simplify right side
    36,147.09x = 6,153,637,636.27
  5. Step 5: Solve for x
    x = 6,153,637,636.27/36,147.09
  6. Step 6: Final answer
    x = 170,238.79

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.