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Finding the Fourth Proportional to 119,861.16, 179,739.46 and 63,687.74

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Solution

The fourth proportional to 119,861.16, 179,739.46 and 63,687.74 is: 95,503.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,861.16 : 179,739.46 = 63,687.74 : x
  2. Step 2: Convert to fraction form
    119,861.16/179,739.46 = 63,687.74/x
  3. Step 3: Cross multiply
    119,861.16x = 179,739.46 × 63,687.74
  4. Step 4: Simplify right side
    119,861.16x = 11,447,199,996.22
  5. Step 5: Solve for x
    x = 11,447,199,996.22/119,861.16
  6. Step 6: Final answer
    x = 95,503.83

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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.