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Finding the Fourth Proportional to 106,715.44, 147,336 and 68,491.48

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Solution

The fourth proportional to 106,715.44, 147,336 and 68,491.48 is: 94,562.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,715.44 : 147,336 = 68,491.48 : x
  2. Step 2: Convert to fraction form
    106,715.44/147,336 = 68,491.48/x
  3. Step 3: Cross multiply
    106,715.44x = 147,336 × 68,491.48
  4. Step 4: Simplify right side
    106,715.44x = 10,091,260,697.28
  5. Step 5: Solve for x
    x = 10,091,260,697.28/106,715.44
  6. Step 6: Final answer
    x = 94,562.33

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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.