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Finding the Fourth Proportional to 139,244.72, 208,901.10 and 44,474.93

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Solution

The fourth proportional to 139,244.72, 208,901.10 and 44,474.93 is: 66,723.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,244.72 : 208,901.10 = 44,474.93 : x
  2. Step 2: Convert to fraction form
    139,244.72/208,901.10 = 44,474.93/x
  3. Step 3: Cross multiply
    139,244.72x = 208,901.10 × 44,474.93
  4. Step 4: Simplify right side
    139,244.72x = 9,290,860,754.92
  5. Step 5: Solve for x
    x = 9,290,860,754.92/139,244.72
  6. Step 6: Final answer
    x = 66,723.25

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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.