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Finding the Third Proportional to 54,200 and 118,288

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Solution

The third proportional to 54,200 and 118,288 is: 258,155.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,200 : 118,288 = 118,288 : x
  2. Step 2: Convert to fraction form
    54,200/118,288 = 118,288/x
  3. Step 3: Cross multiply
    54,200x = 118,288 × 118,288
  4. Step 4: Simplify right side
    54,200x = 13,992,050,944
  5. Step 5: Solve for x
    x = 13,992,050,944/54,200
  6. Step 6: Final answer
    x = 258,155.92

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.