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Finding the Fourth Proportional to 173,694.40, 260,368.80 and 80,036.80

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Solution

The fourth proportional to 173,694.40, 260,368.80 and 80,036.80 is: 119,975.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,694.40 : 260,368.80 = 80,036.80 : x
  2. Step 2: Convert to fraction form
    173,694.40/260,368.80 = 80,036.80/x
  3. Step 3: Cross multiply
    173,694.40x = 260,368.80 × 80,036.80
  4. Step 4: Simplify right side
    173,694.40x = 20,839,085,571.84
  5. Step 5: Solve for x
    x = 20,839,085,571.84/173,694.40
  6. Step 6: Final answer
    x = 119,975.58

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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.