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Finding the Fourth Proportional to 339,268.81, 508,795.36 and 111,511.90

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Solution

The fourth proportional to 339,268.81, 508,795.36 and 111,511.90 is: 167,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,268.81 : 508,795.36 = 111,511.90 : x
  2. Step 2: Convert to fraction form
    339,268.81/508,795.36 = 111,511.90/x
  3. Step 3: Cross multiply
    339,268.81x = 508,795.36 × 111,511.90
  4. Step 4: Simplify right side
    339,268.81x = 56,736,737,304.78
  5. Step 5: Solve for x
    x = 56,736,737,304.78/339,268.81
  6. Step 6: Final answer
    x = 167,232.40

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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.