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Finding the Fourth Proportional to 119,687.57, 179,511.92 and 56,507.57

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Solution

The fourth proportional to 119,687.57, 179,511.92 and 56,507.57 is: 84,752.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,687.57 : 179,511.92 = 56,507.57 : x
  2. Step 2: Convert to fraction form
    119,687.57/179,511.92 = 56,507.57/x
  3. Step 3: Cross multiply
    119,687.57x = 179,511.92 × 56,507.57
  4. Step 4: Simplify right side
    119,687.57x = 10,143,782,551.48
  5. Step 5: Solve for x
    x = 10,143,782,551.48/119,687.57
  6. Step 6: Final answer
    x = 84,752.18

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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.