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Finding the Fourth Proportional to 351,776.70, 527,665.02 and 99,057.09

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Solution

The fourth proportional to 351,776.70, 527,665.02 and 99,057.09 is: 148,585.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,776.70 : 527,665.02 = 99,057.09 : x
  2. Step 2: Convert to fraction form
    351,776.70/527,665.02 = 99,057.09/x
  3. Step 3: Cross multiply
    351,776.70x = 527,665.02 × 99,057.09
  4. Step 4: Simplify right side
    351,776.70x = 52,268,961,375.99
  5. Step 5: Solve for x
    x = 52,268,961,375.99/351,776.70
  6. Step 6: Final answer
    x = 148,585.63

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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.