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Finding the Fourth Proportional to 68,361, 94,338.18 and 38,553

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Solution

The fourth proportional to 68,361, 94,338.18 and 38,553 is: 53,203.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,361 : 94,338.18 = 38,553 : x
  2. Step 2: Convert to fraction form
    68,361/94,338.18 = 38,553/x
  3. Step 3: Cross multiply
    68,361x = 94,338.18 × 38,553
  4. Step 4: Simplify right side
    68,361x = 3,637,019,853.54
  5. Step 5: Solve for x
    x = 3,637,019,853.54/68,361
  6. Step 6: Final answer
    x = 53,203.14

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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.