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Finding the Fourth Proportional to 101,994.17, 140,706.68 and 67,969.52

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Solution

The fourth proportional to 101,994.17, 140,706.68 and 67,969.52 is: 93,767.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,994.17 : 140,706.68 = 67,969.52 : x
  2. Step 2: Convert to fraction form
    101,994.17/140,706.68 = 67,969.52/x
  3. Step 3: Cross multiply
    101,994.17x = 140,706.68 × 67,969.52
  4. Step 4: Simplify right side
    101,994.17x = 9,563,764,457.01
  5. Step 5: Solve for x
    x = 9,563,764,457.01/101,994.17
  6. Step 6: Final answer
    x = 93,767.75

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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.