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Finding the Third Proportional to 119,128.50 and 185,226.75

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Solution

The third proportional to 119,128.50 and 185,226.75 is: 287,999.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,128.50 : 185,226.75 = 185,226.75 : x
  2. Step 2: Convert to fraction form
    119,128.50/185,226.75 = 185,226.75/x
  3. Step 3: Cross multiply
    119,128.50x = 185,226.75 × 185,226.75
  4. Step 4: Simplify right side
    119,128.50x = 34,308,948,915.56
  5. Step 5: Solve for x
    x = 34,308,948,915.56/119,128.50
  6. Step 6: Final answer
    x = 287,999.50

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.