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Finding the Fourth Proportional to 108,961.01, 150,358.11 and 61,222.31

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Solution

The fourth proportional to 108,961.01, 150,358.11 and 61,222.31 is: 84,482.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,961.01 : 150,358.11 = 61,222.31 : x
  2. Step 2: Convert to fraction form
    108,961.01/150,358.11 = 61,222.31/x
  3. Step 3: Cross multiply
    108,961.01x = 150,358.11 × 61,222.31
  4. Step 4: Simplify right side
    108,961.01x = 9,205,270,821.43
  5. Step 5: Solve for x
    x = 9,205,270,821.43/108,961.01
  6. Step 6: Final answer
    x = 84,482.25

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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.