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Finding the Fourth Proportional to 173,696.80, 260,545.20 and 154,343.20

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Solution

The fourth proportional to 173,696.80, 260,545.20 and 154,343.20 is: 231,514.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,696.80 : 260,545.20 = 154,343.20 : x
  2. Step 2: Convert to fraction form
    173,696.80/260,545.20 = 154,343.20/x
  3. Step 3: Cross multiply
    173,696.80x = 260,545.20 × 154,343.20
  4. Step 4: Simplify right side
    173,696.80x = 40,213,379,912.64
  5. Step 5: Solve for x
    x = 40,213,379,912.64/173,696.80
  6. Step 6: Final answer
    x = 231,514.80

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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.