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Finding the Fourth Proportional to 173,640.98, 260,500.75 and 55,319.06

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Solution

The fourth proportional to 173,640.98, 260,500.75 and 55,319.06 is: 82,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,640.98 : 260,500.75 = 55,319.06 : x
  2. Step 2: Convert to fraction form
    173,640.98/260,500.75 = 55,319.06/x
  3. Step 3: Cross multiply
    173,640.98x = 260,500.75 × 55,319.06
  4. Step 4: Simplify right side
    173,640.98x = 14,410,656,619.30
  5. Step 5: Solve for x
    x = 14,410,656,619.30/173,640.98
  6. Step 6: Final answer
    x = 82,991.10

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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.