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Finding the Fourth Proportional to 234,506.94, 352,231.13 and 139,921.71

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Solution

The fourth proportional to 234,506.94, 352,231.13 and 139,921.71 is: 210,163.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,506.94 : 352,231.13 = 139,921.71 : x
  2. Step 2: Convert to fraction form
    234,506.94/352,231.13 = 139,921.71/x
  3. Step 3: Cross multiply
    234,506.94x = 352,231.13 × 139,921.71
  4. Step 4: Simplify right side
    234,506.94x = 49,284,779,564.07
  5. Step 5: Solve for x
    x = 49,284,779,564.07/234,506.94
  6. Step 6: Final answer
    x = 210,163.42

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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.