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Finding the Fourth Proportional to 68,490.83, 94,505.31 and 38,266.49

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Solution

The fourth proportional to 68,490.83, 94,505.31 and 38,266.49 is: 52,801.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,490.83 : 94,505.31 = 38,266.49 : x
  2. Step 2: Convert to fraction form
    68,490.83/94,505.31 = 38,266.49/x
  3. Step 3: Cross multiply
    68,490.83x = 94,505.31 × 38,266.49
  4. Step 4: Simplify right side
    68,490.83x = 3,616,386,500.06
  5. Step 5: Solve for x
    x = 3,616,386,500.06/68,490.83
  6. Step 6: Final answer
    x = 52,801.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.