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Finding the Fourth Proportional to 139,181.91, 208,670.63 and 44,357.54

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Solution

The fourth proportional to 139,181.91, 208,670.63 and 44,357.54 is: 66,503.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,181.91 : 208,670.63 = 44,357.54 : x
  2. Step 2: Convert to fraction form
    139,181.91/208,670.63 = 44,357.54/x
  3. Step 3: Cross multiply
    139,181.91x = 208,670.63 × 44,357.54
  4. Step 4: Simplify right side
    139,181.91x = 9,256,114,551.91
  5. Step 5: Solve for x
    x = 9,256,114,551.91/139,181.91
  6. Step 6: Final answer
    x = 66,503.72

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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.