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Finding the Fourth Proportional to 317,128.68, 475,772.30 and 223,816.68

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Solution

The fourth proportional to 317,128.68, 475,772.30 and 223,816.68 is: 335,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,128.68 : 475,772.30 = 223,816.68 : x
  2. Step 2: Convert to fraction form
    317,128.68/475,772.30 = 223,816.68/x
  3. Step 3: Cross multiply
    317,128.68x = 475,772.30 × 223,816.68
  4. Step 4: Simplify right side
    317,128.68x = 106,485,776,621.96
  5. Step 5: Solve for x
    x = 106,485,776,621.96/317,128.68
  6. Step 6: Final answer
    x = 335,780.97

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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.