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Finding the Third Proportional to 178,426.50 and 262,710.75

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Solution

The third proportional to 178,426.50 and 262,710.75 is: 386,808.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,426.50 : 262,710.75 = 262,710.75 : x
  2. Step 2: Convert to fraction form
    178,426.50/262,710.75 = 262,710.75/x
  3. Step 3: Cross multiply
    178,426.50x = 262,710.75 × 262,710.75
  4. Step 4: Simplify right side
    178,426.50x = 69,016,938,165.56
  5. Step 5: Solve for x
    x = 69,016,938,165.56/178,426.50
  6. Step 6: Final answer
    x = 386,808.79

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.