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Finding the Fourth Proportional to 228,599.82, 315,464.42 and 126,624.95

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Solution

The fourth proportional to 228,599.82, 315,464.42 and 126,624.95 is: 174,740.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,599.82 : 315,464.42 = 126,624.95 : x
  2. Step 2: Convert to fraction form
    228,599.82/315,464.42 = 126,624.95/x
  3. Step 3: Cross multiply
    228,599.82x = 315,464.42 × 126,624.95
  4. Step 4: Simplify right side
    228,599.82x = 39,945,664,198.83
  5. Step 5: Solve for x
    x = 39,945,664,198.83/228,599.82
  6. Step 6: Final answer
    x = 174,740.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.