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Finding the Fourth Proportional to 151,702.75, 209,349.89 and 84,634.75

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Solution

The fourth proportional to 151,702.75, 209,349.89 and 84,634.75 is: 116,796.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,702.75 : 209,349.89 = 84,634.75 : x
  2. Step 2: Convert to fraction form
    151,702.75/209,349.89 = 84,634.75/x
  3. Step 3: Cross multiply
    151,702.75x = 209,349.89 × 84,634.75
  4. Step 4: Simplify right side
    151,702.75x = 17,718,275,602.68
  5. Step 5: Solve for x
    x = 17,718,275,602.68/151,702.75
  6. Step 6: Final answer
    x = 116,796.01

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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.