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Finding the Fourth Proportional to 165,571.21, 228,481.93 and 93,946.96

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Solution

The fourth proportional to 165,571.21, 228,481.93 and 93,946.96 is: 129,643.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,571.21 : 228,481.93 = 93,946.96 : x
  2. Step 2: Convert to fraction form
    165,571.21/228,481.93 = 93,946.96/x
  3. Step 3: Cross multiply
    165,571.21x = 228,481.93 × 93,946.96
  4. Step 4: Simplify right side
    165,571.21x = 21,465,182,738.43
  5. Step 5: Solve for x
    x = 21,465,182,738.43/165,571.21
  6. Step 6: Final answer
    x = 129,643.21

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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.