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Finding the Fourth Proportional to 67,745.70, 93,504.61 and 45,085.65

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Solution

The fourth proportional to 67,745.70, 93,504.61 and 45,085.65 is: 62,228.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,745.70 : 93,504.61 = 45,085.65 : x
  2. Step 2: Convert to fraction form
    67,745.70/93,504.61 = 45,085.65/x
  3. Step 3: Cross multiply
    67,745.70x = 93,504.61 × 45,085.65
  4. Step 4: Simplify right side
    67,745.70x = 4,215,715,825.56
  5. Step 5: Solve for x
    x = 4,215,715,825.56/67,745.70
  6. Step 6: Final answer
    x = 62,228.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.