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Finding the Fourth Proportional to 57,984.54, 86,851.84 and 39,161.07

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Solution

The fourth proportional to 57,984.54, 86,851.84 and 39,161.07 is: 58,657.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,984.54 : 86,851.84 = 39,161.07 : x
  2. Step 2: Convert to fraction form
    57,984.54/86,851.84 = 39,161.07/x
  3. Step 3: Cross multiply
    57,984.54x = 86,851.84 × 39,161.07
  4. Step 4: Simplify right side
    57,984.54x = 3,401,210,355.80
  5. Step 5: Solve for x
    x = 3,401,210,355.80/57,984.54
  6. Step 6: Final answer
    x = 58,657.20

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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.