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Finding the Fourth Proportional to 68,355.82, 102,599.40 and 33,320.08

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Solution

The fourth proportional to 68,355.82, 102,599.40 and 33,320.08 is: 50,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,355.82 : 102,599.40 = 33,320.08 : x
  2. Step 2: Convert to fraction form
    68,355.82/102,599.40 = 33,320.08/x
  3. Step 3: Cross multiply
    68,355.82x = 102,599.40 × 33,320.08
  4. Step 4: Simplify right side
    68,355.82x = 3,418,619,702.96
  5. Step 5: Solve for x
    x = 3,418,619,702.96/68,355.82
  6. Step 6: Final answer
    x = 50,012.13

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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.