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Finding the Third Proportional to 178,440.75 and 260,538.75

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Solution

The third proportional to 178,440.75 and 260,538.75 is: 380,408.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,440.75 : 260,538.75 = 260,538.75 : x
  2. Step 2: Convert to fraction form
    178,440.75/260,538.75 = 260,538.75/x
  3. Step 3: Cross multiply
    178,440.75x = 260,538.75 × 260,538.75
  4. Step 4: Simplify right side
    178,440.75x = 67,880,440,251.56
  5. Step 5: Solve for x
    x = 67,880,440,251.56/178,440.75
  6. Step 6: Final answer
    x = 380,408.85

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.