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Finding the Fourth Proportional to 58,768.50, 81,135.14 and 35,806.99

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Solution

The fourth proportional to 58,768.50, 81,135.14 and 35,806.99 is: 49,434.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,768.50 : 81,135.14 = 35,806.99 : x
  2. Step 2: Convert to fraction form
    58,768.50/81,135.14 = 35,806.99/x
  3. Step 3: Cross multiply
    58,768.50x = 81,135.14 × 35,806.99
  4. Step 4: Simplify right side
    58,768.50x = 2,905,204,740.95
  5. Step 5: Solve for x
    x = 2,905,204,740.95/58,768.50
  6. Step 6: Final answer
    x = 49,434.73

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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.