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Finding the Fourth Proportional to 119,374.92, 164,591.46 and 79,077.96

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Solution

The fourth proportional to 119,374.92, 164,591.46 and 79,077.96 is: 109,030.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,374.92 : 164,591.46 = 79,077.96 : x
  2. Step 2: Convert to fraction form
    119,374.92/164,591.46 = 79,077.96/x
  3. Step 3: Cross multiply
    119,374.92x = 164,591.46 × 79,077.96
  4. Step 4: Simplify right side
    119,374.92x = 13,015,556,890.22
  5. Step 5: Solve for x
    x = 13,015,556,890.22/119,374.92
  6. Step 6: Final answer
    x = 109,030.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.