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Finding the Fourth Proportional to 141,792.86, 195,687.94 and 105,920.60

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Solution

The fourth proportional to 141,792.86, 195,687.94 and 105,920.60 is: 146,180.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,792.86 : 195,687.94 = 105,920.60 : x
  2. Step 2: Convert to fraction form
    141,792.86/195,687.94 = 105,920.60/x
  3. Step 3: Cross multiply
    141,792.86x = 195,687.94 × 105,920.60
  4. Step 4: Simplify right side
    141,792.86x = 20,727,383,039.12
  5. Step 5: Solve for x
    x = 20,727,383,039.12/141,792.86
  6. Step 6: Final answer
    x = 146,180.72

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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.