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Finding the Fourth Proportional to 365,813.94, 548,895.90 and 129,268.02

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Solution

The fourth proportional to 365,813.94, 548,895.90 and 129,268.02 is: 193,963.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,813.94 : 548,895.90 = 129,268.02 : x
  2. Step 2: Convert to fraction form
    365,813.94/548,895.90 = 129,268.02/x
  3. Step 3: Cross multiply
    365,813.94x = 548,895.90 × 129,268.02
  4. Step 4: Simplify right side
    365,813.94x = 70,954,686,179.12
  5. Step 5: Solve for x
    x = 70,954,686,179.12/365,813.94
  6. Step 6: Final answer
    x = 193,963.87

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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.