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Finding the Fourth Proportional to 57,199.59, 78,908.73 and 35,990.55

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Solution

The fourth proportional to 57,199.59, 78,908.73 and 35,990.55 is: 49,650.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,199.59 : 78,908.73 = 35,990.55 : x
  2. Step 2: Convert to fraction form
    57,199.59/78,908.73 = 35,990.55/x
  3. Step 3: Cross multiply
    57,199.59x = 78,908.73 × 35,990.55
  4. Step 4: Simplify right side
    57,199.59x = 2,839,968,592.50
  5. Step 5: Solve for x
    x = 2,839,968,592.50/57,199.59
  6. Step 6: Final answer
    x = 49,650.16

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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.