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Finding the Fourth Proportional to 56,793.14, 78,375.07 and 31,300.43

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Solution

The fourth proportional to 56,793.14, 78,375.07 and 31,300.43 is: 43,194.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,793.14 : 78,375.07 = 31,300.43 : x
  2. Step 2: Convert to fraction form
    56,793.14/78,375.07 = 31,300.43/x
  3. Step 3: Cross multiply
    56,793.14x = 78,375.07 × 31,300.43
  4. Step 4: Simplify right side
    56,793.14x = 2,453,173,392.28
  5. Step 5: Solve for x
    x = 2,453,173,392.28/56,793.14
  6. Step 6: Final answer
    x = 43,194.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.