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Finding the Fourth Proportional to 289,910.26, 400,119.89 and 176,798.62

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Solution

The fourth proportional to 289,910.26, 400,119.89 and 176,798.62 is: 244,008.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,910.26 : 400,119.89 = 176,798.62 : x
  2. Step 2: Convert to fraction form
    289,910.26/400,119.89 = 176,798.62/x
  3. Step 3: Cross multiply
    289,910.26x = 400,119.89 × 176,798.62
  4. Step 4: Simplify right side
    289,910.26x = 70,740,644,386.55
  5. Step 5: Solve for x
    x = 70,740,644,386.55/289,910.26
  6. Step 6: Final answer
    x = 244,008.76

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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.