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Finding the Fourth Proportional to 108,607.56, 149,825.04 and 66,092.28

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Solution

The fourth proportional to 108,607.56, 149,825.04 and 66,092.28 is: 91,174.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,607.56 : 149,825.04 = 66,092.28 : x
  2. Step 2: Convert to fraction form
    108,607.56/149,825.04 = 66,092.28/x
  3. Step 3: Cross multiply
    108,607.56x = 149,825.04 × 66,092.28
  4. Step 4: Simplify right side
    108,607.56x = 9,902,278,494.69
  5. Step 5: Solve for x
    x = 9,902,278,494.69/108,607.56
  6. Step 6: Final answer
    x = 91,174.85

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1.5x scale

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.