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Finding the Fourth Proportional to 234,513.69, 351,766.81 and 74,587.32

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Solution

The fourth proportional to 234,513.69, 351,766.81 and 74,587.32 is: 111,879.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,513.69 : 351,766.81 = 74,587.32 : x
  2. Step 2: Convert to fraction form
    234,513.69/351,766.81 = 74,587.32/x
  3. Step 3: Cross multiply
    234,513.69x = 351,766.81 × 74,587.32
  4. Step 4: Simplify right side
    234,513.69x = 26,237,341,491.08
  5. Step 5: Solve for x
    x = 26,237,341,491.08/234,513.69
  6. Step 6: Final answer
    x = 111,879.79

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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.