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Finding the Fourth Proportional to 154,515.80, 231,773.70 and 151,405.40

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Solution

The fourth proportional to 154,515.80, 231,773.70 and 151,405.40 is: 227,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,515.80 : 231,773.70 = 151,405.40 : x
  2. Step 2: Convert to fraction form
    154,515.80/231,773.70 = 151,405.40/x
  3. Step 3: Cross multiply
    154,515.80x = 231,773.70 × 151,405.40
  4. Step 4: Simplify right side
    154,515.80x = 35,091,789,757.98
  5. Step 5: Solve for x
    x = 35,091,789,757.98/154,515.80
  6. Step 6: Final answer
    x = 227,108.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.