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Finding the Fourth Proportional to 209,270.60, 313,905.90 and 110,966.60

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Solution

The fourth proportional to 209,270.60, 313,905.90 and 110,966.60 is: 166,449.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,270.60 : 313,905.90 = 110,966.60 : x
  2. Step 2: Convert to fraction form
    209,270.60/313,905.90 = 110,966.60/x
  3. Step 3: Cross multiply
    209,270.60x = 313,905.90 × 110,966.60
  4. Step 4: Simplify right side
    209,270.60x = 34,833,070,442.94
  5. Step 5: Solve for x
    x = 34,833,070,442.94/209,270.60
  6. Step 6: Final answer
    x = 166,449.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.