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Finding the Fourth Proportional to 299,719.87, 449,287.59 and 119,751.64

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Solution

The fourth proportional to 299,719.87, 449,287.59 and 119,751.64 is: 179,510.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,719.87 : 449,287.59 = 119,751.64 : x
  2. Step 2: Convert to fraction form
    299,719.87/449,287.59 = 119,751.64/x
  3. Step 3: Cross multiply
    299,719.87x = 449,287.59 × 119,751.64
  4. Step 4: Simplify right side
    299,719.87x = 53,802,925,060.00
  5. Step 5: Solve for x
    x = 53,802,925,060.00/299,719.87
  6. Step 6: Final answer
    x = 179,510.71

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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.