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Finding the Fourth Proportional to 119,694.60, 179,639.10 and 115,806.60

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Solution

The fourth proportional to 119,694.60, 179,639.10 and 115,806.60 is: 173,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,694.60 : 179,639.10 = 115,806.60 : x
  2. Step 2: Convert to fraction form
    119,694.60/179,639.10 = 115,806.60/x
  3. Step 3: Cross multiply
    119,694.60x = 179,639.10 × 115,806.60
  4. Step 4: Simplify right side
    119,694.60x = 20,803,393,398.06
  5. Step 5: Solve for x
    x = 20,803,393,398.06/119,694.60
  6. Step 6: Final answer
    x = 173,803.94

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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.