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Finding the Fourth Proportional to 71,194.57, 106,739.13 and 43,108.02

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Solution

The fourth proportional to 71,194.57, 106,739.13 and 43,108.02 is: 64,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,194.57 : 106,739.13 = 43,108.02 : x
  2. Step 2: Convert to fraction form
    71,194.57/106,739.13 = 43,108.02/x
  3. Step 3: Cross multiply
    71,194.57x = 106,739.13 × 43,108.02
  4. Step 4: Simplify right side
    71,194.57x = 4,601,312,335.28
  5. Step 5: Solve for x
    x = 4,601,312,335.28/71,194.57
  6. Step 6: Final answer
    x = 64,630.10

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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.