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Finding the Fourth Proportional to 169,858.56, 234,366.72 and 102,789.12

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Solution

The fourth proportional to 169,858.56, 234,366.72 and 102,789.12 is: 141,825.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,858.56 : 234,366.72 = 102,789.12 : x
  2. Step 2: Convert to fraction form
    169,858.56/234,366.72 = 102,789.12/x
  3. Step 3: Cross multiply
    169,858.56x = 234,366.72 × 102,789.12
  4. Step 4: Simplify right side
    169,858.56x = 24,090,348,906.09
  5. Step 5: Solve for x
    x = 24,090,348,906.09/169,858.56
  6. Step 6: Final answer
    x = 141,825.93

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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.