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Finding the Fourth Proportional to 139,060.87, 208,522.23 and 44,278.68

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Solution

The fourth proportional to 139,060.87, 208,522.23 and 44,278.68 is: 66,396.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,060.87 : 208,522.23 = 44,278.68 : x
  2. Step 2: Convert to fraction form
    139,060.87/208,522.23 = 44,278.68/x
  3. Step 3: Cross multiply
    139,060.87x = 208,522.23 × 44,278.68
  4. Step 4: Simplify right side
    139,060.87x = 9,233,088,538.03
  5. Step 5: Solve for x
    x = 9,233,088,538.03/139,060.87
  6. Step 6: Final answer
    x = 66,396.02

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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.