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Finding the Fourth Proportional to 108,233.64, 149,369.05 and 60,490.80

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Solution

The fourth proportional to 108,233.64, 149,369.05 and 60,490.80 is: 83,481.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,233.64 : 149,369.05 = 60,490.80 : x
  2. Step 2: Convert to fraction form
    108,233.64/149,369.05 = 60,490.80/x
  3. Step 3: Cross multiply
    108,233.64x = 149,369.05 × 60,490.80
  4. Step 4: Simplify right side
    108,233.64x = 9,035,452,431.67
  5. Step 5: Solve for x
    x = 9,035,452,431.67/108,233.64
  6. Step 6: Final answer
    x = 83,481.00

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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.