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Finding the Fourth Proportional to 72,373.80, 108,546.30 and 34,933.80

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Solution

The fourth proportional to 72,373.80, 108,546.30 and 34,933.80 is: 52,393.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,373.80 : 108,546.30 = 34,933.80 : x
  2. Step 2: Convert to fraction form
    72,373.80/108,546.30 = 34,933.80/x
  3. Step 3: Cross multiply
    72,373.80x = 108,546.30 × 34,933.80
  4. Step 4: Simplify right side
    72,373.80x = 3,791,934,734.94
  5. Step 5: Solve for x
    x = 3,791,934,734.94/72,373.80
  6. Step 6: Final answer
    x = 52,393.75

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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.