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Finding the Fourth Proportional to 351,998.52, 527,971.22 and 112,102.72

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Solution

The fourth proportional to 351,998.52, 527,971.22 and 112,102.72 is: 168,145.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,998.52 : 527,971.22 = 112,102.72 : x
  2. Step 2: Convert to fraction form
    351,998.52/527,971.22 = 112,102.72/x
  3. Step 3: Cross multiply
    351,998.52x = 527,971.22 × 112,102.72
  4. Step 4: Simplify right side
    351,998.52x = 59,187,011,984.08
  5. Step 5: Solve for x
    x = 59,187,011,984.08/351,998.52
  6. Step 6: Final answer
    x = 168,145.63

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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.