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Finding the Fourth Proportional to 118,892.25, 164,071.31 and 68,591.25

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Solution

The fourth proportional to 118,892.25, 164,071.31 and 68,591.25 is: 94,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,892.25 : 164,071.31 = 68,591.25 : x
  2. Step 2: Convert to fraction form
    118,892.25/164,071.31 = 68,591.25/x
  3. Step 3: Cross multiply
    118,892.25x = 164,071.31 × 68,591.25
  4. Step 4: Simplify right side
    118,892.25x = 11,253,855,899.08
  5. Step 5: Solve for x
    x = 11,253,855,899.08/118,892.25
  6. Step 6: Final answer
    x = 94,655.93

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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.