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Finding the Fourth Proportional to 199,703.23, 299,557.50 and 66,583.53

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Solution

The fourth proportional to 199,703.23, 299,557.50 and 66,583.53 is: 99,876.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,703.23 : 299,557.50 = 66,583.53 : x
  2. Step 2: Convert to fraction form
    199,703.23/299,557.50 = 66,583.53/x
  3. Step 3: Cross multiply
    199,703.23x = 299,557.50 × 66,583.53
  4. Step 4: Simplify right side
    199,703.23x = 19,945,595,787.98
  5. Step 5: Solve for x
    x = 19,945,595,787.98/199,703.23
  6. Step 6: Final answer
    x = 99,876.18

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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.