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Finding the Fourth Proportional to 71,632.52, 107,365.18 and 52,629.64

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Solution

The fourth proportional to 71,632.52, 107,365.18 and 52,629.64 is: 78,883.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,632.52 : 107,365.18 = 52,629.64 : x
  2. Step 2: Convert to fraction form
    71,632.52/107,365.18 = 52,629.64/x
  3. Step 3: Cross multiply
    71,632.52x = 107,365.18 × 52,629.64
  4. Step 4: Simplify right side
    71,632.52x = 5,650,590,771.94
  5. Step 5: Solve for x
    x = 5,650,590,771.94/71,632.52
  6. Step 6: Final answer
    x = 78,883.04

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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.