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Finding the Third Proportional to 75,136 and 112,472

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Solution

The third proportional to 75,136 and 112,472 is: 168,360.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136 : 112,472 = 112,472 : x
  2. Step 2: Convert to fraction form
    75,136/112,472 = 112,472/x
  3. Step 3: Cross multiply
    75,136x = 112,472 × 112,472
  4. Step 4: Simplify right side
    75,136x = 12,649,950,784
  5. Step 5: Solve for x
    x = 12,649,950,784/75,136
  6. Step 6: Final answer
    x = 168,360.72

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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.