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Finding the Fourth Proportional to 453,065.81, 679,586.49 and 111,512.28

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Solution

The fourth proportional to 453,065.81, 679,586.49 and 111,512.28 is: 167,265.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,065.81 : 679,586.49 = 111,512.28 : x
  2. Step 2: Convert to fraction form
    453,065.81/679,586.49 = 111,512.28/x
  3. Step 3: Cross multiply
    453,065.81x = 679,586.49 × 111,512.28
  4. Step 4: Simplify right side
    453,065.81x = 75,782,235,771.54
  5. Step 5: Solve for x
    x = 75,782,235,771.54/453,065.81
  6. Step 6: Final answer
    x = 167,265.41

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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.