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Finding the Fourth Proportional to 71,798.15, 107,462.43 and 52,817.72

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Solution

The fourth proportional to 71,798.15, 107,462.43 and 52,817.72 is: 79,053.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,798.15 : 107,462.43 = 52,817.72 : x
  2. Step 2: Convert to fraction form
    71,798.15/107,462.43 = 52,817.72/x
  3. Step 3: Cross multiply
    71,798.15x = 107,462.43 × 52,817.72
  4. Step 4: Simplify right side
    71,798.15x = 5,675,920,000.95
  5. Step 5: Solve for x
    x = 5,675,920,000.95/71,798.15
  6. Step 6: Final answer
    x = 79,053.85

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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.