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Finding the Fourth Proportional to 316,923.48, 475,375.46 and 129,794.04

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Solution

The fourth proportional to 316,923.48, 475,375.46 and 129,794.04 is: 194,687.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,923.48 : 475,375.46 = 129,794.04 : x
  2. Step 2: Convert to fraction form
    316,923.48/475,375.46 = 129,794.04/x
  3. Step 3: Cross multiply
    316,923.48x = 475,375.46 × 129,794.04
  4. Step 4: Simplify right side
    316,923.48x = 61,700,901,470.26
  5. Step 5: Solve for x
    x = 61,700,901,470.26/316,923.48
  6. Step 6: Final answer
    x = 194,687.06

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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.