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Finding the Fourth Proportional to 57,800.16, 86,694.03 and 39,199.59

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Solution

The fourth proportional to 57,800.16, 86,694.03 and 39,199.59 is: 58,795.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,800.16 : 86,694.03 = 39,199.59 : x
  2. Step 2: Convert to fraction form
    57,800.16/86,694.03 = 39,199.59/x
  3. Step 3: Cross multiply
    57,800.16x = 86,694.03 × 39,199.59
  4. Step 4: Simplify right side
    57,800.16x = 3,398,370,431.45
  5. Step 5: Solve for x
    x = 3,398,370,431.45/57,800.16
  6. Step 6: Final answer
    x = 58,795.17

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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.