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Finding the Fourth Proportional to 251,761.96, 347,431.50 and 137,041.03

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Solution

The fourth proportional to 251,761.96, 347,431.50 and 137,041.03 is: 189,116.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,761.96 : 347,431.50 = 137,041.03 : x
  2. Step 2: Convert to fraction form
    251,761.96/347,431.50 = 137,041.03/x
  3. Step 3: Cross multiply
    251,761.96x = 347,431.50 × 137,041.03
  4. Step 4: Simplify right side
    251,761.96x = 47,612,370,614.45
  5. Step 5: Solve for x
    x = 47,612,370,614.45/251,761.96
  6. Step 6: Final answer
    x = 189,116.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.