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Finding the Fourth Proportional to 219,899.61, 303,462.05 and 119,297.61

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Solution

The fourth proportional to 219,899.61, 303,462.05 and 119,297.61 is: 164,631.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,899.61 : 303,462.05 = 119,297.61 : x
  2. Step 2: Convert to fraction form
    219,899.61/303,462.05 = 119,297.61/x
  3. Step 3: Cross multiply
    219,899.61x = 303,462.05 × 119,297.61
  4. Step 4: Simplify right side
    219,899.61x = 36,202,296,694.21
  5. Step 5: Solve for x
    x = 36,202,296,694.21/219,899.61
  6. Step 6: Final answer
    x = 164,631.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.