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Finding the Fourth Proportional to 74,856, 112,302.48 and 22,265.28

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Solution

The fourth proportional to 74,856, 112,302.48 and 22,265.28 is: 33,403.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,856 : 112,302.48 = 22,265.28 : x
  2. Step 2: Convert to fraction form
    74,856/112,302.48 = 22,265.28/x
  3. Step 3: Cross multiply
    74,856x = 112,302.48 × 22,265.28
  4. Step 4: Simplify right side
    74,856x = 2,500,446,161.89
  5. Step 5: Solve for x
    x = 2,500,446,161.89/74,856
  6. Step 6: Final answer
    x = 33,403.42

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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.