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Finding the Fourth Proportional to 268,876.66, 403,312.25 and 69,196.27

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Solution

The fourth proportional to 268,876.66, 403,312.25 and 69,196.27 is: 103,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,876.66 : 403,312.25 = 69,196.27 : x
  2. Step 2: Convert to fraction form
    268,876.66/403,312.25 = 69,196.27/x
  3. Step 3: Cross multiply
    268,876.66x = 403,312.25 × 69,196.27
  4. Step 4: Simplify right side
    268,876.66x = 27,907,701,991.05
  5. Step 5: Solve for x
    x = 27,907,701,991.05/268,876.66
  6. Step 6: Final answer
    x = 103,793.70

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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.