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Finding the Fourth Proportional to 119,991.32, 179,991.90 and 41,159.76

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Solution

The fourth proportional to 119,991.32, 179,991.90 and 41,159.76 is: 61,741.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,991.32 : 179,991.90 = 41,159.76 : x
  2. Step 2: Convert to fraction form
    119,991.32/179,991.90 = 41,159.76/x
  3. Step 3: Cross multiply
    119,991.32x = 179,991.90 × 41,159.76
  4. Step 4: Simplify right side
    119,991.32x = 7,408,423,405.94
  5. Step 5: Solve for x
    x = 7,408,423,405.94/119,991.32
  6. Step 6: Final answer
    x = 61,741.33

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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.