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Finding the Fourth Proportional to 123,289.70, 184,935.78 and 39,048.26

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Solution

The fourth proportional to 123,289.70, 184,935.78 and 39,048.26 is: 58,572.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,289.70 : 184,935.78 = 39,048.26 : x
  2. Step 2: Convert to fraction form
    123,289.70/184,935.78 = 39,048.26/x
  3. Step 3: Cross multiply
    123,289.70x = 184,935.78 × 39,048.26
  4. Step 4: Simplify right side
    123,289.70x = 7,221,419,496.06
  5. Step 5: Solve for x
    x = 7,221,419,496.06/123,289.70
  6. Step 6: Final answer
    x = 58,572.77

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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.