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Finding the Fourth Proportional to 194,641.29, 268,615.58 and 108,619.29

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Solution

The fourth proportional to 194,641.29, 268,615.58 and 108,619.29 is: 149,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,641.29 : 268,615.58 = 108,619.29 : x
  2. Step 2: Convert to fraction form
    194,641.29/268,615.58 = 108,619.29/x
  3. Step 3: Cross multiply
    194,641.29x = 268,615.58 × 108,619.29
  4. Step 4: Simplify right side
    194,641.29x = 29,176,833,039.44
  5. Step 5: Solve for x
    x = 29,176,833,039.44/194,641.29
  6. Step 6: Final answer
    x = 149,900.53

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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.