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Finding the Fourth Proportional to 370,872.55, 556,163.25 and 130,935.25

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Solution

The fourth proportional to 370,872.55, 556,163.25 and 130,935.25 is: 196,351.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,872.55 : 556,163.25 = 130,935.25 : x
  2. Step 2: Convert to fraction form
    370,872.55/556,163.25 = 130,935.25/x
  3. Step 3: Cross multiply
    370,872.55x = 556,163.25 × 130,935.25
  4. Step 4: Simplify right side
    370,872.55x = 72,821,374,179.56
  5. Step 5: Solve for x
    x = 72,821,374,179.56/370,872.55
  6. Step 6: Final answer
    x = 196,351.48

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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.