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Finding the Fourth Proportional to 317,300.10, 475,951.80 and 106,939.86

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Solution

The fourth proportional to 317,300.10, 475,951.80 and 106,939.86 is: 160,410.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,300.10 : 475,951.80 = 106,939.86 : x
  2. Step 2: Convert to fraction form
    317,300.10/475,951.80 = 106,939.86/x
  3. Step 3: Cross multiply
    317,300.10x = 475,951.80 × 106,939.86
  4. Step 4: Simplify right side
    317,300.10x = 50,898,218,858.75
  5. Step 5: Solve for x
    x = 50,898,218,858.75/317,300.10
  6. Step 6: Final answer
    x = 160,410.35

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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.