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Finding the Fourth Proportional to 199,442.70, 298,908.09 and 87,092.46

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Solution

The fourth proportional to 199,442.70, 298,908.09 and 87,092.46 is: 130,526.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,442.70 : 298,908.09 = 87,092.46 : x
  2. Step 2: Convert to fraction form
    199,442.70/298,908.09 = 87,092.46/x
  3. Step 3: Cross multiply
    199,442.70x = 298,908.09 × 87,092.46
  4. Step 4: Simplify right side
    199,442.70x = 26,032,640,872.00
  5. Step 5: Solve for x
    x = 26,032,640,872.00/199,442.70
  6. Step 6: Final answer
    x = 130,526.92

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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.