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Finding the Third Proportional to 76,160.50 and 106,472

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Solution

The third proportional to 76,160.50 and 106,472 is: 148,847.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,160.50 : 106,472 = 106,472 : x
  2. Step 2: Convert to fraction form
    76,160.50/106,472 = 106,472/x
  3. Step 3: Cross multiply
    76,160.50x = 106,472 × 106,472
  4. Step 4: Simplify right side
    76,160.50x = 11,336,286,784
  5. Step 5: Solve for x
    x = 11,336,286,784/76,160.50
  6. Step 6: Final answer
    x = 148,847.33

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.