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Finding the Third Proportional to 74,742.75 and 111,907.88

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Solution

The third proportional to 74,742.75 and 111,907.88 is: 167,553.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,742.75 : 111,907.88 = 111,907.88 : x
  2. Step 2: Convert to fraction form
    74,742.75/111,907.88 = 111,907.88/x
  3. Step 3: Cross multiply
    74,742.75x = 111,907.88 × 111,907.88
  4. Step 4: Simplify right side
    74,742.75x = 12,523,372,487.02
  5. Step 5: Solve for x
    x = 12,523,372,487.02/74,742.75
  6. Step 6: Final answer
    x = 167,553.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.