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Finding the Third Proportional to 174,987 and 256,284

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Solution

The third proportional to 174,987 and 256,284 is: 375,350.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,987 : 256,284 = 256,284 : x
  2. Step 2: Convert to fraction form
    174,987/256,284 = 256,284/x
  3. Step 3: Cross multiply
    174,987x = 256,284 × 256,284
  4. Step 4: Simplify right side
    174,987x = 65,681,488,656
  5. Step 5: Solve for x
    x = 65,681,488,656/174,987
  6. Step 6: Final answer
    x = 375,350.68

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.