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Finding the Fourth Proportional to 268,951.93, 403,311.25 and 91,411.27

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Solution

The fourth proportional to 268,951.93, 403,311.25 and 91,411.27 is: 137,077.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,951.93 : 403,311.25 = 91,411.27 : x
  2. Step 2: Convert to fraction form
    268,951.93/403,311.25 = 91,411.27/x
  3. Step 3: Cross multiply
    268,951.93x = 403,311.25 × 91,411.27
  4. Step 4: Simplify right side
    268,951.93x = 36,867,193,567.79
  5. Step 5: Solve for x
    x = 36,867,193,567.79/268,951.93
  6. Step 6: Final answer
    x = 137,077.26

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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.