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Finding the Fourth Proportional to 123,094.98, 169,871.13 and 66,506.34

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Solution

The fourth proportional to 123,094.98, 169,871.13 and 66,506.34 is: 91,778.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,094.98 : 169,871.13 = 66,506.34 : x
  2. Step 2: Convert to fraction form
    123,094.98/169,871.13 = 66,506.34/x
  3. Step 3: Cross multiply
    123,094.98x = 169,871.13 × 66,506.34
  4. Step 4: Simplify right side
    123,094.98x = 11,297,507,127.96
  5. Step 5: Solve for x
    x = 11,297,507,127.96/123,094.98
  6. Step 6: Final answer
    x = 91,778.78

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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.