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Finding the Fourth Proportional to 264,581.69, 396,898.74 and 84,621.89

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Solution

The fourth proportional to 264,581.69, 396,898.74 and 84,621.89 is: 126,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,581.69 : 396,898.74 = 84,621.89 : x
  2. Step 2: Convert to fraction form
    264,581.69/396,898.74 = 84,621.89/x
  3. Step 3: Cross multiply
    264,581.69x = 396,898.74 × 84,621.89
  4. Step 4: Simplify right side
    264,581.69x = 33,586,319,532.92
  5. Step 5: Solve for x
    x = 33,586,319,532.92/264,581.69
  6. Step 6: Final answer
    x = 126,941.21

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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.