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Finding the Fourth Proportional to 58,558.81, 80,811.14 and 31,701.30

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Solution

The fourth proportional to 58,558.81, 80,811.14 and 31,701.30 is: 43,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,558.81 : 80,811.14 = 31,701.30 : x
  2. Step 2: Convert to fraction form
    58,558.81/80,811.14 = 31,701.30/x
  3. Step 3: Cross multiply
    58,558.81x = 80,811.14 × 31,701.30
  4. Step 4: Simplify right side
    58,558.81x = 2,561,818,192.48
  5. Step 5: Solve for x
    x = 2,561,818,192.48/58,558.81
  6. Step 6: Final answer
    x = 43,747.78

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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.