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Finding the Fourth Proportional to 168,026.94, 231,991.11 and 117,638.46

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Solution

The fourth proportional to 168,026.94, 231,991.11 and 117,638.46 is: 162,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,026.94 : 231,991.11 = 117,638.46 : x
  2. Step 2: Convert to fraction form
    168,026.94/231,991.11 = 117,638.46/x
  3. Step 3: Cross multiply
    168,026.94x = 231,991.11 × 117,638.46
  4. Step 4: Simplify right side
    168,026.94x = 27,291,076,914.09
  5. Step 5: Solve for x
    x = 27,291,076,914.09/168,026.94
  6. Step 6: Final answer
    x = 162,420.84

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1.5x scale

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.