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Finding the Fourth Proportional to 119,757.60, 179,537.76 and 47,717.76

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Solution

The fourth proportional to 119,757.60, 179,537.76 and 47,717.76 is: 71,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,757.60 : 179,537.76 = 47,717.76 : x
  2. Step 2: Convert to fraction form
    119,757.60/179,537.76 = 47,717.76/x
  3. Step 3: Cross multiply
    119,757.60x = 179,537.76 × 47,717.76
  4. Step 4: Simplify right side
    119,757.60x = 8,567,139,742.62
  5. Step 5: Solve for x
    x = 8,567,139,742.62/119,757.60
  6. Step 6: Final answer
    x = 71,537.34

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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.