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Finding the Fourth Proportional to 173,363.76, 260,077.92 and 55,003.20

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Solution

The fourth proportional to 173,363.76, 260,077.92 and 55,003.20 is: 82,515.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,363.76 : 260,077.92 = 55,003.20 : x
  2. Step 2: Convert to fraction form
    173,363.76/260,077.92 = 55,003.20/x
  3. Step 3: Cross multiply
    173,363.76x = 260,077.92 × 55,003.20
  4. Step 4: Simplify right side
    173,363.76x = 14,305,117,849.34
  5. Step 5: Solve for x
    x = 14,305,117,849.34/173,363.76
  6. Step 6: Final answer
    x = 82,515.04

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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.