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Finding the Third Proportional to 68,465.25 and 149,445

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Solution

The third proportional to 68,465.25 and 149,445 is: 326,206.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,465.25 : 149,445 = 149,445 : x
  2. Step 2: Convert to fraction form
    68,465.25/149,445 = 149,445/x
  3. Step 3: Cross multiply
    68,465.25x = 149,445 × 149,445
  4. Step 4: Simplify right side
    68,465.25x = 22,333,808,025
  5. Step 5: Solve for x
    x = 22,333,808,025/68,465.25
  6. Step 6: Final answer
    x = 326,206.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.