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Finding the Fourth Proportional to 194,689.52, 268,680.68 and 109,804.88

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Solution

The fourth proportional to 194,689.52, 268,680.68 and 109,804.88 is: 151,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,689.52 : 268,680.68 = 109,804.88 : x
  2. Step 2: Convert to fraction form
    194,689.52/268,680.68 = 109,804.88/x
  3. Step 3: Cross multiply
    194,689.52x = 268,680.68 × 109,804.88
  4. Step 4: Simplify right side
    194,689.52x = 29,502,449,825.72
  5. Step 5: Solve for x
    x = 29,502,449,825.72/194,689.52
  6. Step 6: Final answer
    x = 151,535.89

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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.