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Finding the Fourth Proportional to 108,894.42, 150,264.02 and 61,138.44

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Solution

The fourth proportional to 108,894.42, 150,264.02 and 61,138.44 is: 84,365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,894.42 : 150,264.02 = 61,138.44 : x
  2. Step 2: Convert to fraction form
    108,894.42/150,264.02 = 61,138.44/x
  3. Step 3: Cross multiply
    108,894.42x = 150,264.02 × 61,138.44
  4. Step 4: Simplify right side
    108,894.42x = 9,186,907,770.93
  5. Step 5: Solve for x
    x = 9,186,907,770.93/108,894.42
  6. Step 6: Final answer
    x = 84,365.28

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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.