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Finding the Fourth Proportional to 55,601.58, 76,711.14 and 31,711.08

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Solution

The fourth proportional to 55,601.58, 76,711.14 and 31,711.08 is: 43,750.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,601.58 : 76,711.14 = 31,711.08 : x
  2. Step 2: Convert to fraction form
    55,601.58/76,711.14 = 31,711.08/x
  3. Step 3: Cross multiply
    55,601.58x = 76,711.14 × 31,711.08
  4. Step 4: Simplify right side
    55,601.58x = 2,432,593,097.43
  5. Step 5: Solve for x
    x = 2,432,593,097.43/55,601.58
  6. Step 6: Final answer
    x = 43,750.43

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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.