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Finding the Fourth Proportional to 173,830.70, 260,640.45 and 68,528.30

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Solution

The fourth proportional to 173,830.70, 260,640.45 and 68,528.30 is: 102,750.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,830.70 : 260,640.45 = 68,528.30 : x
  2. Step 2: Convert to fraction form
    173,830.70/260,640.45 = 68,528.30/x
  3. Step 3: Cross multiply
    173,830.70x = 260,640.45 × 68,528.30
  4. Step 4: Simplify right side
    173,830.70x = 17,861,246,949.74
  5. Step 5: Solve for x
    x = 17,861,246,949.74/173,830.70
  6. Step 6: Final answer
    x = 102,750.82

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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.