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Finding the Third Proportional to 177,977.25 and 386,734.50

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Solution

The third proportional to 177,977.25 and 386,734.50 is: 840,352.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,977.25 : 386,734.50 = 386,734.50 : x
  2. Step 2: Convert to fraction form
    177,977.25/386,734.50 = 386,734.50/x
  3. Step 3: Cross multiply
    177,977.25x = 386,734.50 × 386,734.50
  4. Step 4: Simplify right side
    177,977.25x = 149,563,573,490.25
  5. Step 5: Solve for x
    x = 149,563,573,490.25/177,977.25
  6. Step 6: Final answer
    x = 840,352.20

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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.