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Finding the Fourth Proportional to 139,574.26, 209,356.44 and 39,734.98

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Solution

The fourth proportional to 139,574.26, 209,356.44 and 39,734.98 is: 59,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,574.26 : 209,356.44 = 39,734.98 : x
  2. Step 2: Convert to fraction form
    139,574.26/209,356.44 = 39,734.98/x
  3. Step 3: Cross multiply
    139,574.26x = 209,356.44 × 39,734.98
  4. Step 4: Simplify right side
    139,574.26x = 8,318,773,956.27
  5. Step 5: Solve for x
    x = 8,318,773,956.27/139,574.26
  6. Step 6: Final answer
    x = 59,601.06

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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.