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Finding the Fourth Proportional to 299,686.92, 449,596.08 and 112,698.36

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Solution

The fourth proportional to 299,686.92, 449,596.08 and 112,698.36 is: 169,072.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,686.92 : 449,596.08 = 112,698.36 : x
  2. Step 2: Convert to fraction form
    299,686.92/449,596.08 = 112,698.36/x
  3. Step 3: Cross multiply
    299,686.92x = 449,596.08 × 112,698.36
  4. Step 4: Simplify right side
    299,686.92x = 50,668,740,878.43
  5. Step 5: Solve for x
    x = 50,668,740,878.43/299,686.92
  6. Step 6: Final answer
    x = 169,072.25

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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.