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Finding the Fourth Proportional to 119,881.44, 179,858.16 and 56,749.68

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Solution

The fourth proportional to 119,881.44, 179,858.16 and 56,749.68 is: 85,141.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,881.44 : 179,858.16 = 56,749.68 : x
  2. Step 2: Convert to fraction form
    119,881.44/179,858.16 = 56,749.68/x
  3. Step 3: Cross multiply
    119,881.44x = 179,858.16 × 56,749.68
  4. Step 4: Simplify right side
    119,881.44x = 10,206,893,025.39
  5. Step 5: Solve for x
    x = 10,206,893,025.39/119,881.44
  6. Step 6: Final answer
    x = 85,141.56

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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.