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Finding the Fourth Proportional to 331,626.48, 457,798.20 and 195,614.64

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Solution

The fourth proportional to 331,626.48, 457,798.20 and 195,614.64 is: 270,038.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,626.48 : 457,798.20 = 195,614.64 : x
  2. Step 2: Convert to fraction form
    331,626.48/457,798.20 = 195,614.64/x
  3. Step 3: Cross multiply
    331,626.48x = 457,798.20 × 195,614.64
  4. Step 4: Simplify right side
    331,626.48x = 89,552,030,085.65
  5. Step 5: Solve for x
    x = 89,552,030,085.65/331,626.48
  6. Step 6: Final answer
    x = 270,038.84

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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.