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Finding the Fourth Proportional to 123,058.70, 184,588.05 and 69,914.60

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Solution

The fourth proportional to 123,058.70, 184,588.05 and 69,914.60 is: 104,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,058.70 : 184,588.05 = 69,914.60 : x
  2. Step 2: Convert to fraction form
    123,058.70/184,588.05 = 69,914.60/x
  3. Step 3: Cross multiply
    123,058.70x = 184,588.05 × 69,914.60
  4. Step 4: Simplify right side
    123,058.70x = 12,905,399,680.53
  5. Step 5: Solve for x
    x = 12,905,399,680.53/123,058.70
  6. Step 6: Final answer
    x = 104,871.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.