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Finding the Fourth Proportional to 101,955.71, 140,816.68 and 67,908.17

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Solution

The fourth proportional to 101,955.71, 140,816.68 and 67,908.17 is: 93,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,955.71 : 140,816.68 = 67,908.17 : x
  2. Step 2: Convert to fraction form
    101,955.71/140,816.68 = 67,908.17/x
  3. Step 3: Cross multiply
    101,955.71x = 140,816.68 × 67,908.17
  4. Step 4: Simplify right side
    101,955.71x = 9,562,603,226.55
  5. Step 5: Solve for x
    x = 9,562,603,226.55/101,955.71
  6. Step 6: Final answer
    x = 93,791.74

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1.5x scale

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.