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Finding the Fourth Proportional to 173,908.70, 260,863.05 and 165,743.90

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Solution

The fourth proportional to 173,908.70, 260,863.05 and 165,743.90 is: 248,615.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,908.70 : 260,863.05 = 165,743.90 : x
  2. Step 2: Convert to fraction form
    173,908.70/260,863.05 = 165,743.90/x
  3. Step 3: Cross multiply
    173,908.70x = 260,863.05 × 165,743.90
  4. Step 4: Simplify right side
    173,908.70x = 43,236,459,272.90
  5. Step 5: Solve for x
    x = 43,236,459,272.90/173,908.70
  6. Step 6: Final answer
    x = 248,615.85

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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.