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Finding the Fourth Proportional to 75,397.42, 104,040.72 and 43,576.56

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Solution

The fourth proportional to 75,397.42, 104,040.72 and 43,576.56 is: 60,131.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,397.42 : 104,040.72 = 43,576.56 : x
  2. Step 2: Convert to fraction form
    75,397.42/104,040.72 = 43,576.56/x
  3. Step 3: Cross multiply
    75,397.42x = 104,040.72 × 43,576.56
  4. Step 4: Simplify right side
    75,397.42x = 4,533,736,677.52
  5. Step 5: Solve for x
    x = 4,533,736,677.52/75,397.42
  6. Step 6: Final answer
    x = 60,131.19

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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.