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Finding the Fourth Proportional to 167,465.64, 231,105.20 and 90,986.25

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Solution

The fourth proportional to 167,465.64, 231,105.20 and 90,986.25 is: 125,562.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,465.64 : 231,105.20 = 90,986.25 : x
  2. Step 2: Convert to fraction form
    167,465.64/231,105.20 = 90,986.25/x
  3. Step 3: Cross multiply
    167,465.64x = 231,105.20 × 90,986.25
  4. Step 4: Simplify right side
    167,465.64x = 21,027,395,503.50
  5. Step 5: Solve for x
    x = 21,027,395,503.50/167,465.64
  6. Step 6: Final answer
    x = 125,562.45

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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.