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Finding the Fourth Proportional to 189,379.62, 283,685.31 and 88,035.66

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Solution

The fourth proportional to 189,379.62, 283,685.31 and 88,035.66 is: 131,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,379.62 : 283,685.31 = 88,035.66 : x
  2. Step 2: Convert to fraction form
    189,379.62/283,685.31 = 88,035.66/x
  3. Step 3: Cross multiply
    189,379.62x = 283,685.31 × 88,035.66
  4. Step 4: Simplify right side
    189,379.62x = 24,974,423,498.15
  5. Step 5: Solve for x
    x = 24,974,423,498.15/189,379.62
  6. Step 6: Final answer
    x = 131,874.93

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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.