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Finding the Fourth Proportional to 199,555.66, 299,485.77 and 73,315.54

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Solution

The fourth proportional to 199,555.66, 299,485.77 and 73,315.54 is: 110,029.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,555.66 : 299,485.77 = 73,315.54 : x
  2. Step 2: Convert to fraction form
    199,555.66/299,485.77 = 73,315.54/x
  3. Step 3: Cross multiply
    199,555.66x = 299,485.77 × 73,315.54
  4. Step 4: Simplify right side
    199,555.66x = 21,956,960,949.87
  5. Step 5: Solve for x
    x = 21,956,960,949.87/199,555.66
  6. Step 6: Final answer
    x = 110,029.26

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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.