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Finding the Fourth Proportional to 57,984.04, 86,851.09 and 39,160.56

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Solution

The fourth proportional to 57,984.04, 86,851.09 and 39,160.56 is: 58,656.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,984.04 : 86,851.09 = 39,160.56 : x
  2. Step 2: Convert to fraction form
    57,984.04/86,851.09 = 39,160.56/x
  3. Step 3: Cross multiply
    57,984.04x = 86,851.09 × 39,160.56
  4. Step 4: Simplify right side
    57,984.04x = 3,401,137,475.37
  5. Step 5: Solve for x
    x = 3,401,137,475.37/57,984.04
  6. Step 6: Final answer
    x = 58,656.45

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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.