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Finding the Fourth Proportional to 199,921.80, 299,916.30 and 59,694.60

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Solution

The fourth proportional to 199,921.80, 299,916.30 and 59,694.60 is: 89,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,921.80 : 299,916.30 = 59,694.60 : x
  2. Step 2: Convert to fraction form
    199,921.80/299,916.30 = 59,694.60/x
  3. Step 3: Cross multiply
    199,921.80x = 299,916.30 × 59,694.60
  4. Step 4: Simplify right side
    199,921.80x = 17,903,383,561.98
  5. Step 5: Solve for x
    x = 17,903,383,561.98/199,921.80
  6. Step 6: Final answer
    x = 89,551.93

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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.