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Finding the Fourth Proportional to 75,393, 113,141.34 and 26,145

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Solution

The fourth proportional to 75,393, 113,141.34 and 26,145 is: 39,235.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,393 : 113,141.34 = 26,145 : x
  2. Step 2: Convert to fraction form
    75,393/113,141.34 = 26,145/x
  3. Step 3: Cross multiply
    75,393x = 113,141.34 × 26,145
  4. Step 4: Simplify right side
    75,393x = 2,958,080,334.30
  5. Step 5: Solve for x
    x = 2,958,080,334.30/75,393
  6. Step 6: Final answer
    x = 39,235.48

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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.