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Finding the Third Proportional to 138,098.25 and 302,555.25

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Solution

The third proportional to 138,098.25 and 302,555.25 is: 662,859.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,098.25 : 302,555.25 = 302,555.25 : x
  2. Step 2: Convert to fraction form
    138,098.25/302,555.25 = 302,555.25/x
  3. Step 3: Cross multiply
    138,098.25x = 302,555.25 × 302,555.25
  4. Step 4: Simplify right side
    138,098.25x = 91,539,679,302.56
  5. Step 5: Solve for x
    x = 91,539,679,302.56/138,098.25
  6. Step 6: Final answer
    x = 662,859.08

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.