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Finding the Fourth Proportional to 167,346.80, 251,018.60 and 40,987.60

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Solution

The fourth proportional to 167,346.80, 251,018.60 and 40,987.60 is: 61,481.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,346.80 : 251,018.60 = 40,987.60 : x
  2. Step 2: Convert to fraction form
    167,346.80/251,018.60 = 40,987.60/x
  3. Step 3: Cross multiply
    167,346.80x = 251,018.60 × 40,987.60
  4. Step 4: Simplify right side
    167,346.80x = 10,288,649,969.36
  5. Step 5: Solve for x
    x = 10,288,649,969.36/167,346.80
  6. Step 6: Final answer
    x = 61,481.01

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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.