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Finding the Fourth Proportional to 452,793.57, 679,213.61 and 115,837.13

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Solution

The fourth proportional to 452,793.57, 679,213.61 and 115,837.13 is: 173,761.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,793.57 : 679,213.61 = 115,837.13 : x
  2. Step 2: Convert to fraction form
    452,793.57/679,213.61 = 115,837.13/x
  3. Step 3: Cross multiply
    452,793.57x = 679,213.61 × 115,837.13
  4. Step 4: Simplify right side
    452,793.57x = 78,678,155,533.87
  5. Step 5: Solve for x
    x = 78,678,155,533.87/452,793.57
  6. Step 6: Final answer
    x = 173,761.64

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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.