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Finding the Fourth Proportional to 234,749.81, 352,118.43 and 66,281.69

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Solution

The fourth proportional to 234,749.81, 352,118.43 and 66,281.69 is: 99,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,749.81 : 352,118.43 = 66,281.69 : x
  2. Step 2: Convert to fraction form
    234,749.81/352,118.43 = 66,281.69/x
  3. Step 3: Cross multiply
    234,749.81x = 352,118.43 × 66,281.69
  4. Step 4: Simplify right side
    234,749.81x = 23,339,004,620.55
  5. Step 5: Solve for x
    x = 23,339,004,620.55/234,749.81
  6. Step 6: Final answer
    x = 99,420.76

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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.