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Finding the Fourth Proportional to 189,076.62, 283,614.92 and 129,732.38

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Solution

The fourth proportional to 189,076.62, 283,614.92 and 129,732.38 is: 194,598.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,076.62 : 283,614.92 = 129,732.38 : x
  2. Step 2: Convert to fraction form
    189,076.62/283,614.92 = 129,732.38/x
  3. Step 3: Cross multiply
    189,076.62x = 283,614.92 × 129,732.38
  4. Step 4: Simplify right side
    189,076.62x = 36,794,038,575.11
  5. Step 5: Solve for x
    x = 36,794,038,575.11/189,076.62
  6. Step 6: Final answer
    x = 194,598.56

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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.