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Finding the Fourth Proportional to 71,092.58, 106,700.22 and 28,995.86

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Solution

The fourth proportional to 71,092.58, 106,700.22 and 28,995.86 is: 43,518.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,092.58 : 106,700.22 = 28,995.86 : x
  2. Step 2: Convert to fraction form
    71,092.58/106,700.22 = 28,995.86/x
  3. Step 3: Cross multiply
    71,092.58x = 106,700.22 × 28,995.86
  4. Step 4: Simplify right side
    71,092.58x = 3,093,864,907.84
  5. Step 5: Solve for x
    x = 3,093,864,907.84/71,092.58
  6. Step 6: Final answer
    x = 43,518.82

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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.