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Finding the Fourth Proportional to 119,777.40, 179,601.30 and 49,663.80

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Solution

The fourth proportional to 119,777.40, 179,601.30 and 49,663.80 is: 74,468.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,777.40 : 179,601.30 = 49,663.80 : x
  2. Step 2: Convert to fraction form
    119,777.40/179,601.30 = 49,663.80/x
  3. Step 3: Cross multiply
    119,777.40x = 179,601.30 × 49,663.80
  4. Step 4: Simplify right side
    119,777.40x = 8,919,683,042.94
  5. Step 5: Solve for x
    x = 8,919,683,042.94/119,777.40
  6. Step 6: Final answer
    x = 74,468.83

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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.