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Finding the Fourth Proportional to 74,620.92, 111,477.27 and 53,392.44

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Solution

The fourth proportional to 74,620.92, 111,477.27 and 53,392.44 is: 79,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,620.92 : 111,477.27 = 53,392.44 : x
  2. Step 2: Convert to fraction form
    74,620.92/111,477.27 = 53,392.44/x
  3. Step 3: Cross multiply
    74,620.92x = 111,477.27 × 53,392.44
  4. Step 4: Simplify right side
    74,620.92x = 5,952,043,449.84
  5. Step 5: Solve for x
    x = 5,952,043,449.84/74,620.92
  6. Step 6: Final answer
    x = 79,763.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.