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Finding the Fourth Proportional to 158,704.67, 218,739.69 and 151,230.59

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Solution

The fourth proportional to 158,704.67, 218,739.69 and 151,230.59 is: 208,438.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,704.67 : 218,739.69 = 151,230.59 : x
  2. Step 2: Convert to fraction form
    158,704.67/218,739.69 = 151,230.59/x
  3. Step 3: Cross multiply
    158,704.67x = 218,739.69 × 151,230.59
  4. Step 4: Simplify right side
    158,704.67x = 33,080,132,375.12
  5. Step 5: Solve for x
    x = 33,080,132,375.12/158,704.67
  6. Step 6: Final answer
    x = 208,438.30

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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.