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Finding the Fourth Proportional to 134,662.62, 185,834.99 and 74,231.95

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Solution

The fourth proportional to 134,662.62, 185,834.99 and 74,231.95 is: 102,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,662.62 : 185,834.99 = 74,231.95 : x
  2. Step 2: Convert to fraction form
    134,662.62/185,834.99 = 74,231.95/x
  3. Step 3: Cross multiply
    134,662.62x = 185,834.99 × 74,231.95
  4. Step 4: Simplify right side
    134,662.62x = 13,794,893,685.93
  5. Step 5: Solve for x
    x = 13,794,893,685.93/134,662.62
  6. Step 6: Final answer
    x = 102,440.41

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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.