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Finding the Fourth Proportional to 119,754.76, 179,651.66 and 53,217.80

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Solution

The fourth proportional to 119,754.76, 179,651.66 and 53,217.80 is: 79,835.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,754.76 : 179,651.66 = 53,217.80 : x
  2. Step 2: Convert to fraction form
    119,754.76/179,651.66 = 53,217.80/x
  3. Step 3: Cross multiply
    119,754.76x = 179,651.66 × 53,217.80
  4. Step 4: Simplify right side
    119,754.76x = 9,560,666,111.55
  5. Step 5: Solve for x
    x = 9,560,666,111.55/119,754.76
  6. Step 6: Final answer
    x = 79,835.37

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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.