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Finding the Fourth Proportional to 59,265.70, 81,716.78 and 47,900.05

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Solution

The fourth proportional to 59,265.70, 81,716.78 and 47,900.05 is: 66,045.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,265.70 : 81,716.78 = 47,900.05 : x
  2. Step 2: Convert to fraction form
    59,265.70/81,716.78 = 47,900.05/x
  3. Step 3: Cross multiply
    59,265.70x = 81,716.78 × 47,900.05
  4. Step 4: Simplify right side
    59,265.70x = 3,914,237,847.84
  5. Step 5: Solve for x
    x = 3,914,237,847.84/59,265.70
  6. Step 6: Final answer
    x = 66,045.59

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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.