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Finding the Fourth Proportional to 173,786.70, 260,680.05 and 102,636.30

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Solution

The fourth proportional to 173,786.70, 260,680.05 and 102,636.30 is: 153,954.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,786.70 : 260,680.05 = 102,636.30 : x
  2. Step 2: Convert to fraction form
    173,786.70/260,680.05 = 102,636.30/x
  3. Step 3: Cross multiply
    173,786.70x = 260,680.05 × 102,636.30
  4. Step 4: Simplify right side
    173,786.70x = 26,755,235,815.82
  5. Step 5: Solve for x
    x = 26,755,235,815.82/173,786.70
  6. Step 6: Final answer
    x = 153,954.45

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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.