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Finding the Fourth Proportional to 190,347.39, 285,650.28 and 101,664.54

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Solution

The fourth proportional to 190,347.39, 285,650.28 and 101,664.54 is: 152,565.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,347.39 : 285,650.28 = 101,664.54 : x
  2. Step 2: Convert to fraction form
    190,347.39/285,650.28 = 101,664.54/x
  3. Step 3: Cross multiply
    190,347.39x = 285,650.28 × 101,664.54
  4. Step 4: Simplify right side
    190,347.39x = 29,040,504,317.07
  5. Step 5: Solve for x
    x = 29,040,504,317.07/190,347.39
  6. Step 6: Final answer
    x = 152,565.81

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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.