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Finding the Fourth Proportional to 71,399.78, 98,507.56 and 41,184.34

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Solution

The fourth proportional to 71,399.78, 98,507.56 and 41,184.34 is: 56,820.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,399.78 : 98,507.56 = 41,184.34 : x
  2. Step 2: Convert to fraction form
    71,399.78/98,507.56 = 41,184.34/x
  3. Step 3: Cross multiply
    71,399.78x = 98,507.56 × 41,184.34
  4. Step 4: Simplify right side
    71,399.78x = 4,056,968,843.61
  5. Step 5: Solve for x
    x = 4,056,968,843.61/71,399.78
  6. Step 6: Final answer
    x = 56,820.47

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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.