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Finding the Fourth Proportional to 68,943.48, 103,437.50 and 33,858.53

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Solution

The fourth proportional to 68,943.48, 103,437.50 and 33,858.53 is: 50,798.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,943.48 : 103,437.50 = 33,858.53 : x
  2. Step 2: Convert to fraction form
    68,943.48/103,437.50 = 33,858.53/x
  3. Step 3: Cross multiply
    68,943.48x = 103,437.50 × 33,858.53
  4. Step 4: Simplify right side
    68,943.48x = 3,502,241,010.39
  5. Step 5: Solve for x
    x = 3,502,241,010.39/68,943.48
  6. Step 6: Final answer
    x = 50,798.73

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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.