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Finding the Fourth Proportional to 183,218.40, 274,667.60 and 70,975.20

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Solution

The fourth proportional to 183,218.40, 274,667.60 and 70,975.20 is: 106,400.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,218.40 : 274,667.60 = 70,975.20 : x
  2. Step 2: Convert to fraction form
    183,218.40/274,667.60 = 70,975.20/x
  3. Step 3: Cross multiply
    183,218.40x = 274,667.60 × 70,975.20
  4. Step 4: Simplify right side
    183,218.40x = 19,494,587,843.52
  5. Step 5: Solve for x
    x = 19,494,587,843.52/183,218.40
  6. Step 6: Final answer
    x = 106,400.82

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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.