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Finding the Fourth Proportional to 153,607.20, 230,556.60 and 131,445.60

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Solution

The fourth proportional to 153,607.20, 230,556.60 and 131,445.60 is: 197,293.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,607.20 : 230,556.60 = 131,445.60 : x
  2. Step 2: Convert to fraction form
    153,607.20/230,556.60 = 131,445.60/x
  3. Step 3: Cross multiply
    153,607.20x = 230,556.60 × 131,445.60
  4. Step 4: Simplify right side
    153,607.20x = 30,305,650,620.96
  5. Step 5: Solve for x
    x = 30,305,650,620.96/153,607.20
  6. Step 6: Final answer
    x = 197,293.16

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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.