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Finding the Fourth Proportional to 139,761.45, 209,577.65 and 44,973.99

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Solution

The fourth proportional to 139,761.45, 209,577.65 and 44,973.99 is: 67,440.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,761.45 : 209,577.65 = 44,973.99 : x
  2. Step 2: Convert to fraction form
    139,761.45/209,577.65 = 44,973.99/x
  3. Step 3: Cross multiply
    139,761.45x = 209,577.65 × 44,973.99
  4. Step 4: Simplify right side
    139,761.45x = 9,425,542,910.45
  5. Step 5: Solve for x
    x = 9,425,542,910.45/139,761.45
  6. Step 6: Final answer
    x = 67,440.22

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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.