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Finding the Fourth Proportional to 331,141.72, 496,653.72 and 141,708.64

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Solution

The fourth proportional to 331,141.72, 496,653.72 and 141,708.64 is: 212,537.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,141.72 : 496,653.72 = 141,708.64 : x
  2. Step 2: Convert to fraction form
    331,141.72/496,653.72 = 141,708.64/x
  3. Step 3: Cross multiply
    331,141.72x = 496,653.72 × 141,708.64
  4. Step 4: Simplify right side
    331,141.72x = 70,380,123,212.14
  5. Step 5: Solve for x
    x = 70,380,123,212.14/331,141.72
  6. Step 6: Final answer
    x = 212,537.77

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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.