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Finding the Fourth Proportional to 268,837.41, 403,257.06 and 79,300.11

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Solution

The fourth proportional to 268,837.41, 403,257.06 and 79,300.11 is: 118,950.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,837.41 : 403,257.06 = 79,300.11 : x
  2. Step 2: Convert to fraction form
    268,837.41/403,257.06 = 79,300.11/x
  3. Step 3: Cross multiply
    268,837.41x = 403,257.06 × 79,300.11
  4. Step 4: Simplify right side
    268,837.41x = 31,978,329,216.28
  5. Step 5: Solve for x
    x = 31,978,329,216.28/268,837.41
  6. Step 6: Final answer
    x = 118,950.44

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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.