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Finding the Fourth Proportional to 93,891.56, 129,694.57 and 69,976.71

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Solution

The fourth proportional to 93,891.56, 129,694.57 and 69,976.71 is: 96,660.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,891.56 : 129,694.57 = 69,976.71 : x
  2. Step 2: Convert to fraction form
    93,891.56/129,694.57 = 69,976.71/x
  3. Step 3: Cross multiply
    93,891.56x = 129,694.57 × 69,976.71
  4. Step 4: Simplify right side
    93,891.56x = 9,075,599,138.52
  5. Step 5: Solve for x
    x = 9,075,599,138.52/93,891.56
  6. Step 6: Final answer
    x = 96,660.44

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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.