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Finding the Fourth Proportional to 67,712.55, 101,607.72 and 52,879.83

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Solution

The fourth proportional to 67,712.55, 101,607.72 and 52,879.83 is: 79,350.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,712.55 : 101,607.72 = 52,879.83 : x
  2. Step 2: Convert to fraction form
    67,712.55/101,607.72 = 52,879.83/x
  3. Step 3: Cross multiply
    67,712.55x = 101,607.72 × 52,879.83
  4. Step 4: Simplify right side
    67,712.55x = 5,372,998,960.29
  5. Step 5: Solve for x
    x = 5,372,998,960.29/67,712.55
  6. Step 6: Final answer
    x = 79,350.12

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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.