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Finding the Fourth Proportional to 72,555.52, 108,756.48 and 41,323.84

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Solution

The fourth proportional to 72,555.52, 108,756.48 and 41,323.84 is: 61,942.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,555.52 : 108,756.48 = 41,323.84 : x
  2. Step 2: Convert to fraction form
    72,555.52/108,756.48 = 41,323.84/x
  3. Step 3: Cross multiply
    72,555.52x = 108,756.48 × 41,323.84
  4. Step 4: Simplify right side
    72,555.52x = 4,494,235,378.48
  5. Step 5: Solve for x
    x = 4,494,235,378.48/72,555.52
  6. Step 6: Final answer
    x = 61,942.02

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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.