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Finding the Fourth Proportional to 73,009.26, 109,525.72 and 28,611.94

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Solution

The fourth proportional to 73,009.26, 109,525.72 and 28,611.94 is: 42,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,009.26 : 109,525.72 = 28,611.94 : x
  2. Step 2: Convert to fraction form
    73,009.26/109,525.72 = 28,611.94/x
  3. Step 3: Cross multiply
    73,009.26x = 109,525.72 × 28,611.94
  4. Step 4: Simplify right side
    73,009.26x = 3,133,743,329.10
  5. Step 5: Solve for x
    x = 3,133,743,329.10/73,009.26
  6. Step 6: Final answer
    x = 42,922.55

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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.