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Finding the Fourth Proportional to 210,571.10, 315,833.40 and 52,799.54

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Solution

The fourth proportional to 210,571.10, 315,833.40 and 52,799.54 is: 79,193.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,571.10 : 315,833.40 = 52,799.54 : x
  2. Step 2: Convert to fraction form
    210,571.10/315,833.40 = 52,799.54/x
  3. Step 3: Cross multiply
    210,571.10x = 315,833.40 × 52,799.54
  4. Step 4: Simplify right side
    210,571.10x = 16,675,858,236.64
  5. Step 5: Solve for x
    x = 16,675,858,236.64/210,571.10
  6. Step 6: Final answer
    x = 79,193.48

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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.