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Finding the Fourth Proportional to 119,751.06, 179,696.61 and 66,487.92

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Solution

The fourth proportional to 119,751.06, 179,696.61 and 66,487.92 is: 99,770.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,751.06 : 179,696.61 = 66,487.92 : x
  2. Step 2: Convert to fraction form
    119,751.06/179,696.61 = 66,487.92/x
  3. Step 3: Cross multiply
    119,751.06x = 179,696.61 × 66,487.92
  4. Step 4: Simplify right side
    119,751.06x = 11,947,653,829.95
  5. Step 5: Solve for x
    x = 11,947,653,829.95/119,751.06
  6. Step 6: Final answer
    x = 99,770.76

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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.