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Finding the Fourth Proportional to 62,690.95, 93,811.74 and 54,286.39

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Solution

The fourth proportional to 62,690.95, 93,811.74 and 54,286.39 is: 81,235.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,690.95 : 93,811.74 = 54,286.39 : x
  2. Step 2: Convert to fraction form
    62,690.95/93,811.74 = 54,286.39/x
  3. Step 3: Cross multiply
    62,690.95x = 93,811.74 × 54,286.39
  4. Step 4: Simplify right side
    62,690.95x = 5,092,700,704.22
  5. Step 5: Solve for x
    x = 5,092,700,704.22/62,690.95
  6. Step 6: Final answer
    x = 81,235.02

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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.