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Finding the Fourth Proportional to 75,672.28, 104,427.75 and 43,859.63

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Solution

The fourth proportional to 75,672.28, 104,427.75 and 43,859.63 is: 60,526.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,672.28 : 104,427.75 = 43,859.63 : x
  2. Step 2: Convert to fraction form
    75,672.28/104,427.75 = 43,859.63/x
  3. Step 3: Cross multiply
    75,672.28x = 104,427.75 × 43,859.63
  4. Step 4: Simplify right side
    75,672.28x = 4,580,162,655.57
  5. Step 5: Solve for x
    x = 4,580,162,655.57/75,672.28
  6. Step 6: Final answer
    x = 60,526.29

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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.