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Finding the Fourth Proportional to 342,865.44, 514,331.97 and 118,196.31

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Solution

The fourth proportional to 342,865.44, 514,331.97 and 118,196.31 is: 177,306.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,865.44 : 514,331.97 = 118,196.31 : x
  2. Step 2: Convert to fraction form
    342,865.44/514,331.97 = 118,196.31/x
  3. Step 3: Cross multiply
    342,865.44x = 514,331.97 × 118,196.31
  4. Step 4: Simplify right side
    342,865.44x = 60,792,140,969.03
  5. Step 5: Solve for x
    x = 60,792,140,969.03/342,865.44
  6. Step 6: Final answer
    x = 177,306.12

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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.