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Finding the Fourth Proportional to 139,745.79, 209,589.30 and 44,984.45

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Solution

The fourth proportional to 139,745.79, 209,589.30 and 44,984.45 is: 67,467.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,745.79 : 209,589.30 = 44,984.45 : x
  2. Step 2: Convert to fraction form
    139,745.79/209,589.30 = 44,984.45/x
  3. Step 3: Cross multiply
    139,745.79x = 209,589.30 × 44,984.45
  4. Step 4: Simplify right side
    139,745.79x = 9,428,258,338.44
  5. Step 5: Solve for x
    x = 9,428,258,338.44/139,745.79
  6. Step 6: Final answer
    x = 67,467.21

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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.