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Finding the Fourth Proportional to 139,191, 208,684.26 and 44,366.59

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Solution

The fourth proportional to 139,191, 208,684.26 and 44,366.59 is: 66,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,191 : 208,684.26 = 44,366.59 : x
  2. Step 2: Convert to fraction form
    139,191/208,684.26 = 44,366.59/x
  3. Step 3: Cross multiply
    139,191x = 208,684.26 × 44,366.59
  4. Step 4: Simplify right side
    139,191x = 9,258,609,002.87
  5. Step 5: Solve for x
    x = 9,258,609,002.87/139,191
  6. Step 6: Final answer
    x = 66,517.30

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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.