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Finding the Fourth Proportional to 75,866.94, 104,745.69 and 67,895.46

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Solution

The fourth proportional to 75,866.94, 104,745.69 and 67,895.46 is: 93,739.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,866.94 : 104,745.69 = 67,895.46 : x
  2. Step 2: Convert to fraction form
    75,866.94/104,745.69 = 67,895.46/x
  3. Step 3: Cross multiply
    75,866.94x = 104,745.69 × 67,895.46
  4. Step 4: Simplify right side
    75,866.94x = 7,111,756,805.57
  5. Step 5: Solve for x
    x = 7,111,756,805.57/75,866.94
  6. Step 6: Final answer
    x = 93,739.87

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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.