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Finding the Fourth Proportional to 351,744.48, 527,665.86 and 115,039.98

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Solution

The fourth proportional to 351,744.48, 527,665.86 and 115,039.98 is: 172,576.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,744.48 : 527,665.86 = 115,039.98 : x
  2. Step 2: Convert to fraction form
    351,744.48/527,665.86 = 115,039.98/x
  3. Step 3: Cross multiply
    351,744.48x = 527,665.86 × 115,039.98
  4. Step 4: Simplify right side
    351,744.48x = 60,702,669,981.08
  5. Step 5: Solve for x
    x = 60,702,669,981.08/351,744.48
  6. Step 6: Final answer
    x = 172,576.04

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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.