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Finding the Fourth Proportional to 167,903.64, 231,636.30 and 111,216.60

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Solution

The fourth proportional to 167,903.64, 231,636.30 and 111,216.60 is: 153,432.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,903.64 : 231,636.30 = 111,216.60 : x
  2. Step 2: Convert to fraction form
    167,903.64/231,636.30 = 111,216.60/x
  3. Step 3: Cross multiply
    167,903.64x = 231,636.30 × 111,216.60
  4. Step 4: Simplify right side
    167,903.64x = 25,761,801,722.58
  5. Step 5: Solve for x
    x = 25,761,801,722.58/167,903.64
  6. Step 6: Final answer
    x = 153,432.06

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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.