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Finding the Fourth Proportional to 133,054.72, 199,523.52 and 49,890.40

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Solution

The fourth proportional to 133,054.72, 199,523.52 and 49,890.40 is: 74,813.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,054.72 : 199,523.52 = 49,890.40 : x
  2. Step 2: Convert to fraction form
    133,054.72/199,523.52 = 49,890.40/x
  3. Step 3: Cross multiply
    133,054.72x = 199,523.52 × 49,890.40
  4. Step 4: Simplify right side
    133,054.72x = 9,954,308,222.21
  5. Step 5: Solve for x
    x = 9,954,308,222.21/133,054.72
  6. Step 6: Final answer
    x = 74,813.64

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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.