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Finding the Fourth Proportional to 57,700.88, 79,627.45 and 31,204.88

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Solution

The fourth proportional to 57,700.88, 79,627.45 and 31,204.88 is: 43,062.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,700.88 : 79,627.45 = 31,204.88 : x
  2. Step 2: Convert to fraction form
    57,700.88/79,627.45 = 31,204.88/x
  3. Step 3: Cross multiply
    57,700.88x = 79,627.45 × 31,204.88
  4. Step 4: Simplify right side
    57,700.88x = 2,484,764,545.81
  5. Step 5: Solve for x
    x = 2,484,764,545.81/57,700.88
  6. Step 6: Final answer
    x = 43,062.86

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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.