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Finding the Third Proportional to 56,136 and 121,008

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Solution

The third proportional to 56,136 and 121,008 is: 260,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,136 : 121,008 = 121,008 : x
  2. Step 2: Convert to fraction form
    56,136/121,008 = 121,008/x
  3. Step 3: Cross multiply
    56,136x = 121,008 × 121,008
  4. Step 4: Simplify right side
    56,136x = 14,642,936,064
  5. Step 5: Solve for x
    x = 14,642,936,064/56,136
  6. Step 6: Final answer
    x = 260,847.51

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.