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Finding the Fourth Proportional to 74,896.54, 103,357.41 and 40,905.30

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Solution

The fourth proportional to 74,896.54, 103,357.41 and 40,905.30 is: 56,449.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,896.54 : 103,357.41 = 40,905.30 : x
  2. Step 2: Convert to fraction form
    74,896.54/103,357.41 = 40,905.30/x
  3. Step 3: Cross multiply
    74,896.54x = 103,357.41 × 40,905.30
  4. Step 4: Simplify right side
    74,896.54x = 4,227,865,863.27
  5. Step 5: Solve for x
    x = 4,227,865,863.27/74,896.54
  6. Step 6: Final answer
    x = 56,449.41

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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.