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Finding the Fourth Proportional to 342,821.72, 514,295.22 and 106,148.36

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Solution

The fourth proportional to 342,821.72, 514,295.22 and 106,148.36 is: 159,241.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,821.72 : 514,295.22 = 106,148.36 : x
  2. Step 2: Convert to fraction form
    342,821.72/514,295.22 = 106,148.36/x
  3. Step 3: Cross multiply
    342,821.72x = 514,295.22 × 106,148.36
  4. Step 4: Simplify right side
    342,821.72x = 54,591,594,158.84
  5. Step 5: Solve for x
    x = 54,591,594,158.84/342,821.72
  6. Step 6: Final answer
    x = 159,241.94

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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.