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Finding the Fourth Proportional to 69,969.94, 104,903.07 and 42,261.46

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Solution

The fourth proportional to 69,969.94, 104,903.07 and 42,261.46 is: 63,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,969.94 : 104,903.07 = 42,261.46 : x
  2. Step 2: Convert to fraction form
    69,969.94/104,903.07 = 42,261.46/x
  3. Step 3: Cross multiply
    69,969.94x = 104,903.07 × 42,261.46
  4. Step 4: Simplify right side
    69,969.94x = 4,433,356,896.68
  5. Step 5: Solve for x
    x = 4,433,356,896.68/69,969.94
  6. Step 6: Final answer
    x = 63,360.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.