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Finding the Fourth Proportional to 133,758.78, 184,556.80 and 90,744.14

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Solution

The fourth proportional to 133,758.78, 184,556.80 and 90,744.14 is: 125,206.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,758.78 : 184,556.80 = 90,744.14 : x
  2. Step 2: Convert to fraction form
    133,758.78/184,556.80 = 90,744.14/x
  3. Step 3: Cross multiply
    133,758.78x = 184,556.80 × 90,744.14
  4. Step 4: Simplify right side
    133,758.78x = 16,747,448,097.15
  5. Step 5: Solve for x
    x = 16,747,448,097.15/133,758.78
  6. Step 6: Final answer
    x = 125,206.35

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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.