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Finding the Third Proportional to 76,576 and 114,942

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Solution

The third proportional to 76,576 and 114,942 is: 172,530.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,576 : 114,942 = 114,942 : x
  2. Step 2: Convert to fraction form
    76,576/114,942 = 114,942/x
  3. Step 3: Cross multiply
    76,576x = 114,942 × 114,942
  4. Step 4: Simplify right side
    76,576x = 13,211,663,364
  5. Step 5: Solve for x
    x = 13,211,663,364/76,576
  6. Step 6: Final answer
    x = 172,530.08

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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.