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Finding the Fourth Proportional to 108,297.82, 149,455.74 and 60,551.20

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Solution

The fourth proportional to 108,297.82, 149,455.74 and 60,551.20 is: 83,563.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,297.82 : 149,455.74 = 60,551.20 : x
  2. Step 2: Convert to fraction form
    108,297.82/149,455.74 = 60,551.20/x
  3. Step 3: Cross multiply
    108,297.82x = 149,455.74 × 60,551.20
  4. Step 4: Simplify right side
    108,297.82x = 9,049,724,403.89
  5. Step 5: Solve for x
    x = 9,049,724,403.89/108,297.82
  6. Step 6: Final answer
    x = 83,563.31

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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.