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Finding the Fourth Proportional to 235,518.75, 353,269.85 and 67,039.96

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Solution

The fourth proportional to 235,518.75, 353,269.85 and 67,039.96 is: 100,557.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,518.75 : 353,269.85 = 67,039.96 : x
  2. Step 2: Convert to fraction form
    235,518.75/353,269.85 = 67,039.96/x
  3. Step 3: Cross multiply
    235,518.75x = 353,269.85 × 67,039.96
  4. Step 4: Simplify right side
    235,518.75x = 23,683,196,613.21
  5. Step 5: Solve for x
    x = 23,683,196,613.21/235,518.75
  6. Step 6: Final answer
    x = 100,557.58

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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.