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Finding the Fourth Proportional to 127,372.89, 191,059.65 and 33,878.64

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Solution

The fourth proportional to 127,372.89, 191,059.65 and 33,878.64 is: 50,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,372.89 : 191,059.65 = 33,878.64 : x
  2. Step 2: Convert to fraction form
    127,372.89/191,059.65 = 33,878.64/x
  3. Step 3: Cross multiply
    127,372.89x = 191,059.65 × 33,878.64
  4. Step 4: Simplify right side
    127,372.89x = 6,472,841,100.88
  5. Step 5: Solve for x
    x = 6,472,841,100.88/127,372.89
  6. Step 6: Final answer
    x = 50,818.04

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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.