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Finding the Fourth Proportional to 131,958.90, 182,094 and 74,600.87

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Solution

The fourth proportional to 131,958.90, 182,094 and 74,600.87 is: 102,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,958.90 : 182,094 = 74,600.87 : x
  2. Step 2: Convert to fraction form
    131,958.90/182,094 = 74,600.87/x
  3. Step 3: Cross multiply
    131,958.90x = 182,094 × 74,600.87
  4. Step 4: Simplify right side
    131,958.90x = 13,584,370,821.78
  5. Step 5: Solve for x
    x = 13,584,370,821.78/131,958.90
  6. Step 6: Final answer
    x = 102,943.95

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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.