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Finding the Fourth Proportional to 235,589.40, 353,379.53 and 67,110.81

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Solution

The fourth proportional to 235,589.40, 353,379.53 and 67,110.81 is: 100,664.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,589.40 : 353,379.53 = 67,110.81 : x
  2. Step 2: Convert to fraction form
    235,589.40/353,379.53 = 67,110.81/x
  3. Step 3: Cross multiply
    235,589.40x = 353,379.53 × 67,110.81
  4. Step 4: Simplify right side
    235,589.40x = 23,715,586,495.72
  5. Step 5: Solve for x
    x = 23,715,586,495.72/235,589.40
  6. Step 6: Final answer
    x = 100,664.91

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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.