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Finding the Fourth Proportional to 119,861.72, 179,903.01 and 60,739.28

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Solution

The fourth proportional to 119,861.72, 179,903.01 and 60,739.28 is: 91,164.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,861.72 : 179,903.01 = 60,739.28 : x
  2. Step 2: Convert to fraction form
    119,861.72/179,903.01 = 60,739.28/x
  3. Step 3: Cross multiply
    119,861.72x = 179,903.01 × 60,739.28
  4. Step 4: Simplify right side
    119,861.72x = 10,927,179,297.23
  5. Step 5: Solve for x
    x = 10,927,179,297.23/119,861.72
  6. Step 6: Final answer
    x = 91,164.88

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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.