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Finding the Fourth Proportional to 119,558.64, 179,245.02 and 77,349.54

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Solution

The fourth proportional to 119,558.64, 179,245.02 and 77,349.54 is: 115,964.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,558.64 : 179,245.02 = 77,349.54 : x
  2. Step 2: Convert to fraction form
    119,558.64/179,245.02 = 77,349.54/x
  3. Step 3: Cross multiply
    119,558.64x = 179,245.02 × 77,349.54
  4. Step 4: Simplify right side
    119,558.64x = 13,864,519,844.29
  5. Step 5: Solve for x
    x = 13,864,519,844.29/119,558.64
  6. Step 6: Final answer
    x = 115,964.18

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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.