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Finding the Fourth Proportional to 300,693.28, 451,005.36 and 79,094.56

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Solution

The fourth proportional to 300,693.28, 451,005.36 and 79,094.56 is: 118,632.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,693.28 : 451,005.36 = 79,094.56 : x
  2. Step 2: Convert to fraction form
    300,693.28/451,005.36 = 79,094.56/x
  3. Step 3: Cross multiply
    300,693.28x = 451,005.36 × 79,094.56
  4. Step 4: Simplify right side
    300,693.28x = 35,672,070,506.84
  5. Step 5: Solve for x
    x = 35,672,070,506.84/300,693.28
  6. Step 6: Final answer
    x = 118,632.75

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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.