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Finding the Fourth Proportional to 190,489.73, 262,865.73 and 108,801.94

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Solution

The fourth proportional to 190,489.73, 262,865.73 and 108,801.94 is: 150,140.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,489.73 : 262,865.73 = 108,801.94 : x
  2. Step 2: Convert to fraction form
    190,489.73/262,865.73 = 108,801.94/x
  3. Step 3: Cross multiply
    190,489.73x = 262,865.73 × 108,801.94
  4. Step 4: Simplify right side
    190,489.73x = 28,600,301,632.67
  5. Step 5: Solve for x
    x = 28,600,301,632.67/190,489.73
  6. Step 6: Final answer
    x = 150,140.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.