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Finding the Third Proportional to 74,240 and 107,264

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Solution

The third proportional to 74,240 and 107,264 is: 154,977.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,240 : 107,264 = 107,264 : x
  2. Step 2: Convert to fraction form
    74,240/107,264 = 107,264/x
  3. Step 3: Cross multiply
    74,240x = 107,264 × 107,264
  4. Step 4: Simplify right side
    74,240x = 11,505,565,696
  5. Step 5: Solve for x
    x = 11,505,565,696/74,240
  6. Step 6: Final answer
    x = 154,977.99

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.