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Finding the Third Proportional to 76,904.50 and 168,930.50

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Solution

The third proportional to 76,904.50 and 168,930.50 is: 371,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,904.50 : 168,930.50 = 168,930.50 : x
  2. Step 2: Convert to fraction form
    76,904.50/168,930.50 = 168,930.50/x
  3. Step 3: Cross multiply
    76,904.50x = 168,930.50 × 168,930.50
  4. Step 4: Simplify right side
    76,904.50x = 28,537,513,830.25
  5. Step 5: Solve for x
    x = 28,537,513,830.25/76,904.50
  6. Step 6: Final answer
    x = 371,077.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.