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Finding the Fourth Proportional to 194,687.88, 268,668.90 and 109,804.68

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Solution

The fourth proportional to 194,687.88, 268,668.90 and 109,804.68 is: 151,530.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,687.88 : 268,668.90 = 109,804.68 : x
  2. Step 2: Convert to fraction form
    194,687.88/268,668.90 = 109,804.68/x
  3. Step 3: Cross multiply
    194,687.88x = 268,668.90 × 109,804.68
  4. Step 4: Simplify right side
    194,687.88x = 29,501,102,590.45
  5. Step 5: Solve for x
    x = 29,501,102,590.45/194,687.88
  6. Step 6: Final answer
    x = 151,530.25

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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.