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Finding the Fourth Proportional to 139,683.96, 209,525.94 and 34,504.92

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Solution

The fourth proportional to 139,683.96, 209,525.94 and 34,504.92 is: 51,757.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,683.96 : 209,525.94 = 34,504.92 : x
  2. Step 2: Convert to fraction form
    139,683.96/209,525.94 = 34,504.92/x
  3. Step 3: Cross multiply
    139,683.96x = 209,525.94 × 34,504.92
  4. Step 4: Simplify right side
    139,683.96x = 7,229,675,797.62
  5. Step 5: Solve for x
    x = 7,229,675,797.62/139,683.96
  6. Step 6: Final answer
    x = 51,757.38

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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.