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Finding the Third Proportional to 185,800.50 and 407,200.50

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Solution

The third proportional to 185,800.50 and 407,200.50 is: 892,420.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,800.50 : 407,200.50 = 407,200.50 : x
  2. Step 2: Convert to fraction form
    185,800.50/407,200.50 = 407,200.50/x
  3. Step 3: Cross multiply
    185,800.50x = 407,200.50 × 407,200.50
  4. Step 4: Simplify right side
    185,800.50x = 165,812,247,200.25
  5. Step 5: Solve for x
    x = 165,812,247,200.25/185,800.50
  6. Step 6: Final answer
    x = 892,420.89

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.