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Finding the Fourth Proportional to 351,889.92, 527,793.30 and 99,189.36

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Solution

The fourth proportional to 351,889.92, 527,793.30 and 99,189.36 is: 148,772.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,889.92 : 527,793.30 = 99,189.36 : x
  2. Step 2: Convert to fraction form
    351,889.92/527,793.30 = 99,189.36/x
  3. Step 3: Cross multiply
    351,889.92x = 527,793.30 × 99,189.36
  4. Step 4: Simplify right side
    351,889.92x = 52,351,479,639.29
  5. Step 5: Solve for x
    x = 52,351,479,639.29/351,889.92
  6. Step 6: Final answer
    x = 148,772.32

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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.