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Finding the Third Proportional to 56,416 and 120,210

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Solution

The third proportional to 56,416 and 120,210 is: 256,140.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,416 : 120,210 = 120,210 : x
  2. Step 2: Convert to fraction form
    56,416/120,210 = 120,210/x
  3. Step 3: Cross multiply
    56,416x = 120,210 × 120,210
  4. Step 4: Simplify right side
    56,416x = 14,450,444,100
  5. Step 5: Solve for x
    x = 14,450,444,100/56,416
  6. Step 6: Final answer
    x = 256,140.88

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.