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Finding the Fourth Proportional to 268,034.56, 403,978.44 and 231,041.12

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Solution

The fourth proportional to 268,034.56, 403,978.44 and 231,041.12 is: 348,222.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,034.56 : 403,978.44 = 231,041.12 : x
  2. Step 2: Convert to fraction form
    268,034.56/403,978.44 = 231,041.12/x
  3. Step 3: Cross multiply
    268,034.56x = 403,978.44 × 231,041.12
  4. Step 4: Simplify right side
    268,034.56x = 93,335,631,233.45
  5. Step 5: Solve for x
    x = 93,335,631,233.45/268,034.56
  6. Step 6: Final answer
    x = 348,222.38

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.