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Finding the Fourth Proportional to 118,954.36, 164,156.82 and 68,653.36

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Solution

The fourth proportional to 118,954.36, 164,156.82 and 68,653.36 is: 94,741.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,954.36 : 164,156.82 = 68,653.36 : x
  2. Step 2: Convert to fraction form
    118,954.36/164,156.82 = 68,653.36/x
  3. Step 3: Cross multiply
    118,954.36x = 164,156.82 × 68,653.36
  4. Step 4: Simplify right side
    118,954.36x = 11,269,917,259.92
  5. Step 5: Solve for x
    x = 11,269,917,259.92/118,954.36
  6. Step 6: Final answer
    x = 94,741.52

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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.