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Finding the Fourth Proportional to 74,858, 112,305.48 and 22,267.28

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Solution

The fourth proportional to 74,858, 112,305.48 and 22,267.28 is: 33,406.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,858 : 112,305.48 = 22,267.28 : x
  2. Step 2: Convert to fraction form
    74,858/112,305.48 = 22,267.28/x
  3. Step 3: Cross multiply
    74,858x = 112,305.48 × 22,267.28
  4. Step 4: Simplify right side
    74,858x = 2,500,737,568.69
  5. Step 5: Solve for x
    x = 2,500,737,568.69/74,858
  6. Step 6: Final answer
    x = 33,406.42

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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.