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Finding the Fourth Proportional to 322,626.61, 483,939.87 and 153,634.57

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Solution

The fourth proportional to 322,626.61, 483,939.87 and 153,634.57 is: 230,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,626.61 : 483,939.87 = 153,634.57 : x
  2. Step 2: Convert to fraction form
    322,626.61/483,939.87 = 153,634.57/x
  3. Step 3: Cross multiply
    322,626.61x = 483,939.87 × 153,634.57
  4. Step 4: Simplify right side
    322,626.61x = 74,349,894,769.49
  5. Step 5: Solve for x
    x = 74,349,894,769.49/322,626.61
  6. Step 6: Final answer
    x = 230,451.84

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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.