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Finding the Fourth Proportional to 56,614.80, 84,922.20 and 30,370.80

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Solution

The fourth proportional to 56,614.80, 84,922.20 and 30,370.80 is: 45,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,614.80 : 84,922.20 = 30,370.80 : x
  2. Step 2: Convert to fraction form
    56,614.80/84,922.20 = 30,370.80/x
  3. Step 3: Cross multiply
    56,614.80x = 84,922.20 × 30,370.80
  4. Step 4: Simplify right side
    56,614.80x = 2,579,155,151.76
  5. Step 5: Solve for x
    x = 2,579,155,151.76/56,614.80
  6. Step 6: Final answer
    x = 45,556.20

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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.