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Finding the Third Proportional to 62,390.50 and 136,445

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Solution

The third proportional to 62,390.50 and 136,445 is: 298,398.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,390.50 : 136,445 = 136,445 : x
  2. Step 2: Convert to fraction form
    62,390.50/136,445 = 136,445/x
  3. Step 3: Cross multiply
    62,390.50x = 136,445 × 136,445
  4. Step 4: Simplify right side
    62,390.50x = 18,617,238,025
  5. Step 5: Solve for x
    x = 18,617,238,025/62,390.50
  6. Step 6: Final answer
    x = 298,398.60

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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.