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Finding the Third Proportional to 102,431.25 and 160,685.25

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Solution

The third proportional to 102,431.25 and 160,685.25 is: 252,069.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,431.25 : 160,685.25 = 160,685.25 : x
  2. Step 2: Convert to fraction form
    102,431.25/160,685.25 = 160,685.25/x
  3. Step 3: Cross multiply
    102,431.25x = 160,685.25 × 160,685.25
  4. Step 4: Simplify right side
    102,431.25x = 25,819,749,567.56
  5. Step 5: Solve for x
    x = 25,819,749,567.56/102,431.25
  6. Step 6: Final answer
    x = 252,069.07

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.