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Finding the Fourth Proportional to 200,370.66, 276,511.64 and 108,489.66

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Solution

The fourth proportional to 200,370.66, 276,511.64 and 108,489.66 is: 149,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,370.66 : 276,511.64 = 108,489.66 : x
  2. Step 2: Convert to fraction form
    200,370.66/276,511.64 = 108,489.66/x
  3. Step 3: Cross multiply
    200,370.66x = 276,511.64 × 108,489.66
  4. Step 4: Simplify right side
    200,370.66x = 29,998,653,809.64
  5. Step 5: Solve for x
    x = 29,998,653,809.64/200,370.66
  6. Step 6: Final answer
    x = 149,715.80

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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.