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Finding the Fourth Proportional to 139,141.27, 208,745.87 and 44,371.45

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Solution

The fourth proportional to 139,141.27, 208,745.87 and 44,371.45 is: 66,568.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,141.27 : 208,745.87 = 44,371.45 : x
  2. Step 2: Convert to fraction form
    139,141.27/208,745.87 = 44,371.45/x
  3. Step 3: Cross multiply
    139,141.27x = 208,745.87 × 44,371.45
  4. Step 4: Simplify right side
    139,141.27x = 9,262,357,097.28
  5. Step 5: Solve for x
    x = 9,262,357,097.28/139,141.27
  6. Step 6: Final answer
    x = 66,568.01

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1.5x scale

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.