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Finding the Fourth Proportional to 547,683.80, 821,612.10 and 173,744.60

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Solution

The fourth proportional to 547,683.80, 821,612.10 and 173,744.60 is: 260,644.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,683.80 : 821,612.10 = 173,744.60 : x
  2. Step 2: Convert to fraction form
    547,683.80/821,612.10 = 173,744.60/x
  3. Step 3: Cross multiply
    547,683.80x = 821,612.10 × 173,744.60
  4. Step 4: Simplify right side
    547,683.80x = 142,750,665,669.66
  5. Step 5: Solve for x
    x = 142,750,665,669.66/547,683.80
  6. Step 6: Final answer
    x = 260,644.31

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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.