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Finding the Fourth Proportional to 194,813.61, 268,841.63 and 108,767.61

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Solution

The fourth proportional to 194,813.61, 268,841.63 and 108,767.61 is: 150,098.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,813.61 : 268,841.63 = 108,767.61 : x
  2. Step 2: Convert to fraction form
    194,813.61/268,841.63 = 108,767.61/x
  3. Step 3: Cross multiply
    194,813.61x = 268,841.63 × 108,767.61
  4. Step 4: Simplify right side
    194,813.61x = 29,241,261,835.52
  5. Step 5: Solve for x
    x = 29,241,261,835.52/194,813.61
  6. Step 6: Final answer
    x = 150,098.66

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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.