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Finding the Fourth Proportional to 199,916.67, 299,993.13 and 73,645.50

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Solution

The fourth proportional to 199,916.67, 299,993.13 and 73,645.50 is: 110,511.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,916.67 : 299,993.13 = 73,645.50 : x
  2. Step 2: Convert to fraction form
    199,916.67/299,993.13 = 73,645.50/x
  3. Step 3: Cross multiply
    199,916.67x = 299,993.13 × 73,645.50
  4. Step 4: Simplify right side
    199,916.67x = 22,093,144,055.42
  5. Step 5: Solve for x
    x = 22,093,144,055.42/199,916.67
  6. Step 6: Final answer
    x = 110,511.77

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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.