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Finding the Fourth Proportional to 74,778.94, 112,169.10 and 22,188.43

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Solution

The fourth proportional to 74,778.94, 112,169.10 and 22,188.43 is: 33,282.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,778.94 : 112,169.10 = 22,188.43 : x
  2. Step 2: Convert to fraction form
    74,778.94/112,169.10 = 22,188.43/x
  3. Step 3: Cross multiply
    74,778.94x = 112,169.10 × 22,188.43
  4. Step 4: Simplify right side
    74,778.94x = 2,488,855,662.67
  5. Step 5: Solve for x
    x = 2,488,855,662.67/74,778.94
  6. Step 6: Final answer
    x = 33,282.84

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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.