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Finding the Third Proportional to 56,118 and 121,137.94

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Solution

The third proportional to 56,118 and 121,137.94 is: 261,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,118 : 121,137.94 = 121,137.94 : x
  2. Step 2: Convert to fraction form
    56,118/121,137.94 = 121,137.94/x
  3. Step 3: Cross multiply
    56,118x = 121,137.94 × 121,137.94
  4. Step 4: Simplify right side
    56,118x = 14,674,399,901.75
  5. Step 5: Solve for x
    x = 14,674,399,901.75/56,118
  6. Step 6: Final answer
    x = 261,491.85

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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.