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Finding the Fourth Proportional to 489,190.55, 733,858.74 and 173,621.03

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Solution

The fourth proportional to 489,190.55, 733,858.74 and 173,621.03 is: 260,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,190.55 : 733,858.74 = 173,621.03 : x
  2. Step 2: Convert to fraction form
    489,190.55/733,858.74 = 173,621.03/x
  3. Step 3: Cross multiply
    489,190.55x = 733,858.74 × 173,621.03
  4. Step 4: Simplify right side
    489,190.55x = 127,413,309,445.20
  5. Step 5: Solve for x
    x = 127,413,309,445.20/489,190.55
  6. Step 6: Final answer
    x = 260,457.42

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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.