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Finding the Third Proportional to 118,005 and 255,685

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Solution

The third proportional to 118,005 and 255,685 is: 554,000.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,005 : 255,685 = 255,685 : x
  2. Step 2: Convert to fraction form
    118,005/255,685 = 255,685/x
  3. Step 3: Cross multiply
    118,005x = 255,685 × 255,685
  4. Step 4: Simplify right side
    118,005x = 65,374,819,225
  5. Step 5: Solve for x
    x = 65,374,819,225/118,005
  6. Step 6: Final answer
    x = 554,000.42

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.