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Finding the Fourth Proportional to 108,867, 163,300.62 and 43,203

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Solution

The fourth proportional to 108,867, 163,300.62 and 43,203 is: 64,804.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,867 : 163,300.62 = 43,203 : x
  2. Step 2: Convert to fraction form
    108,867/163,300.62 = 43,203/x
  3. Step 3: Cross multiply
    108,867x = 163,300.62 × 43,203
  4. Step 4: Simplify right side
    108,867x = 7,055,076,685.86
  5. Step 5: Solve for x
    x = 7,055,076,685.86/108,867
  6. Step 6: Final answer
    x = 64,804.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.