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Finding the Fourth Proportional to 173,131.20, 259,696.80 and 154,468.80

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Solution

The fourth proportional to 173,131.20, 259,696.80 and 154,468.80 is: 231,703.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,131.20 : 259,696.80 = 154,468.80 : x
  2. Step 2: Convert to fraction form
    173,131.20/259,696.80 = 154,468.80/x
  3. Step 3: Cross multiply
    173,131.20x = 259,696.80 × 154,468.80
  4. Step 4: Simplify right side
    173,131.20x = 40,115,053,059.84
  5. Step 5: Solve for x
    x = 40,115,053,059.84/173,131.20
  6. Step 6: Final answer
    x = 231,703.20

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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.