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Finding the Fourth Proportional to 105,697.84, 158,546.76 and 35,571.28

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Solution

The fourth proportional to 105,697.84, 158,546.76 and 35,571.28 is: 53,356.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,697.84 : 158,546.76 = 35,571.28 : x
  2. Step 2: Convert to fraction form
    105,697.84/158,546.76 = 35,571.28/x
  3. Step 3: Cross multiply
    105,697.84x = 158,546.76 × 35,571.28
  4. Step 4: Simplify right side
    105,697.84x = 5,639,711,193.05
  5. Step 5: Solve for x
    x = 5,639,711,193.05/105,697.84
  6. Step 6: Final answer
    x = 53,356.92

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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.