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Finding the Fourth Proportional to 452,731.57, 678,991.82 and 168,555.96

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Solution

The fourth proportional to 452,731.57, 678,991.82 and 168,555.96 is: 252,794.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,731.57 : 678,991.82 = 168,555.96 : x
  2. Step 2: Convert to fraction form
    452,731.57/678,991.82 = 168,555.96/x
  3. Step 3: Cross multiply
    452,731.57x = 678,991.82 × 168,555.96
  4. Step 4: Simplify right side
    452,731.57x = 114,448,117,209.47
  5. Step 5: Solve for x
    x = 114,448,117,209.47/452,731.57
  6. Step 6: Final answer
    x = 252,794.65

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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.