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Finding the Fourth Proportional to 143,232.98, 214,920.74 and 108,386.42

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Solution

The fourth proportional to 143,232.98, 214,920.74 and 108,386.42 is: 162,633.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,232.98 : 214,920.74 = 108,386.42 : x
  2. Step 2: Convert to fraction form
    143,232.98/214,920.74 = 108,386.42/x
  3. Step 3: Cross multiply
    143,232.98x = 214,920.74 × 108,386.42
  4. Step 4: Simplify right side
    143,232.98x = 23,294,488,788.71
  5. Step 5: Solve for x
    x = 23,294,488,788.71/143,232.98
  6. Step 6: Final answer
    x = 162,633.56

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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.