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Finding the Fourth Proportional to 171,090.70, 256,344.45 and 146,013.10

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Solution

The fourth proportional to 171,090.70, 256,344.45 and 146,013.10 is: 218,770.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,090.70 : 256,344.45 = 146,013.10 : x
  2. Step 2: Convert to fraction form
    171,090.70/256,344.45 = 146,013.10/x
  3. Step 3: Cross multiply
    171,090.70x = 256,344.45 × 146,013.10
  4. Step 4: Simplify right side
    171,090.70x = 37,429,647,812.30
  5. Step 5: Solve for x
    x = 37,429,647,812.30/171,090.70
  6. Step 6: Final answer
    x = 218,770.79

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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.