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Finding the Fourth Proportional to 139,168.66, 208,764.60 and 44,412.52

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Solution

The fourth proportional to 139,168.66, 208,764.60 and 44,412.52 is: 66,622.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,168.66 : 208,764.60 = 44,412.52 : x
  2. Step 2: Convert to fraction form
    139,168.66/208,764.60 = 44,412.52/x
  3. Step 3: Cross multiply
    139,168.66x = 208,764.60 × 44,412.52
  4. Step 4: Simplify right side
    139,168.66x = 9,271,761,972.79
  5. Step 5: Solve for x
    x = 9,271,761,972.79/139,168.66
  6. Step 6: Final answer
    x = 66,622.49

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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.