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Finding the Third Proportional to 74,168.25 and 115,056

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Solution

The third proportional to 74,168.25 and 115,056 is: 178,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,168.25 : 115,056 = 115,056 : x
  2. Step 2: Convert to fraction form
    74,168.25/115,056 = 115,056/x
  3. Step 3: Cross multiply
    74,168.25x = 115,056 × 115,056
  4. Step 4: Simplify right side
    74,168.25x = 13,237,883,136
  5. Step 5: Solve for x
    x = 13,237,883,136/74,168.25
  6. Step 6: Final answer
    x = 178,484.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.