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Finding the Fourth Proportional to 167,321.43, 230,903.86 and 90,840.62

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Solution

The fourth proportional to 167,321.43, 230,903.86 and 90,840.62 is: 125,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,321.43 : 230,903.86 = 90,840.62 : x
  2. Step 2: Convert to fraction form
    167,321.43/230,903.86 = 90,840.62/x
  3. Step 3: Cross multiply
    167,321.43x = 230,903.86 × 90,840.62
  4. Step 4: Simplify right side
    167,321.43x = 20,975,449,802.79
  5. Step 5: Solve for x
    x = 20,975,449,802.79/167,321.43
  6. Step 6: Final answer
    x = 125,360.21

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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.