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Finding the Fourth Proportional to 442,092.30, 663,138.45 and 109,668.30

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Solution

The fourth proportional to 442,092.30, 663,138.45 and 109,668.30 is: 164,502.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,092.30 : 663,138.45 = 109,668.30 : x
  2. Step 2: Convert to fraction form
    442,092.30/663,138.45 = 109,668.30/x
  3. Step 3: Cross multiply
    442,092.30x = 663,138.45 × 109,668.30
  4. Step 4: Simplify right side
    442,092.30x = 72,725,266,476.14
  5. Step 5: Solve for x
    x = 72,725,266,476.14/442,092.30
  6. Step 6: Final answer
    x = 164,502.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.