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Finding the Fourth Proportional to 139,232.96, 208,849.44 and 133,284.32

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Solution

The fourth proportional to 139,232.96, 208,849.44 and 133,284.32 is: 199,926.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,232.96 : 208,849.44 = 133,284.32 : x
  2. Step 2: Convert to fraction form
    139,232.96/208,849.44 = 133,284.32/x
  3. Step 3: Cross multiply
    139,232.96x = 208,849.44 × 133,284.32
  4. Step 4: Simplify right side
    139,232.96x = 27,836,355,592.78
  5. Step 5: Solve for x
    x = 27,836,355,592.78/139,232.96
  6. Step 6: Final answer
    x = 199,926.48

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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.