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Finding the Fourth Proportional to 118,889.98, 164,074.77 and 67,919.26

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Solution

The fourth proportional to 118,889.98, 164,074.77 and 67,919.26 is: 93,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,889.98 : 164,074.77 = 67,919.26 : x
  2. Step 2: Convert to fraction form
    118,889.98/164,074.77 = 67,919.26/x
  3. Step 3: Cross multiply
    118,889.98x = 164,074.77 × 67,919.26
  4. Step 4: Simplify right side
    118,889.98x = 11,143,836,908.28
  5. Step 5: Solve for x
    x = 11,143,836,908.28/118,889.98
  6. Step 6: Final answer
    x = 93,732.35

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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.