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Finding the Fourth Proportional to 179,321.64, 268,904.64 and 60,961.20

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Solution

The fourth proportional to 179,321.64, 268,904.64 and 60,961.20 is: 91,415.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,321.64 : 268,904.64 = 60,961.20 : x
  2. Step 2: Convert to fraction form
    179,321.64/268,904.64 = 60,961.20/x
  3. Step 3: Cross multiply
    179,321.64x = 268,904.64 × 60,961.20
  4. Step 4: Simplify right side
    179,321.64x = 16,392,749,539.97
  5. Step 5: Solve for x
    x = 16,392,749,539.97/179,321.64
  6. Step 6: Final answer
    x = 91,415.34

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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.