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Finding the Fourth Proportional to 68,969.82, 103,542.30 and 58,647.18

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Solution

The fourth proportional to 68,969.82, 103,542.30 and 58,647.18 is: 88,045.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,969.82 : 103,542.30 = 58,647.18 : x
  2. Step 2: Convert to fraction form
    68,969.82/103,542.30 = 58,647.18/x
  3. Step 3: Cross multiply
    68,969.82x = 103,542.30 × 58,647.18
  4. Step 4: Simplify right side
    68,969.82x = 6,072,463,905.71
  5. Step 5: Solve for x
    x = 6,072,463,905.71/68,969.82
  6. Step 6: Final answer
    x = 88,045.23

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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.