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Finding the Fourth Proportional to 151,694.88, 209,339.02 and 84,626.88

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Solution

The fourth proportional to 151,694.88, 209,339.02 and 84,626.88 is: 116,785.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,694.88 : 209,339.02 = 84,626.88 : x
  2. Step 2: Convert to fraction form
    151,694.88/209,339.02 = 84,626.88/x
  3. Step 3: Cross multiply
    151,694.88x = 209,339.02 × 84,626.88
  4. Step 4: Simplify right side
    151,694.88x = 17,715,707,078.16
  5. Step 5: Solve for x
    x = 17,715,707,078.16/151,694.88
  6. Step 6: Final answer
    x = 116,785.14

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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.