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Finding the Fourth Proportional to 56,680.60, 84,819.30 and 49,365.40

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Solution

The fourth proportional to 56,680.60, 84,819.30 and 49,365.40 is: 73,872.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,680.60 : 84,819.30 = 49,365.40 : x
  2. Step 2: Convert to fraction form
    56,680.60/84,819.30 = 49,365.40/x
  3. Step 3: Cross multiply
    56,680.60x = 84,819.30 × 49,365.40
  4. Step 4: Simplify right side
    56,680.60x = 4,187,138,672.22
  5. Step 5: Solve for x
    x = 4,187,138,672.22/56,680.60
  6. Step 6: Final answer
    x = 73,872.52

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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.