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Finding the Fourth Proportional to 89,822.70, 134,647.65 and 69,821.10

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Solution

The fourth proportional to 89,822.70, 134,647.65 and 69,821.10 is: 104,664.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,822.70 : 134,647.65 = 69,821.10 : x
  2. Step 2: Convert to fraction form
    89,822.70/134,647.65 = 69,821.10/x
  3. Step 3: Cross multiply
    89,822.70x = 134,647.65 × 69,821.10
  4. Step 4: Simplify right side
    89,822.70x = 9,401,247,035.42
  5. Step 5: Solve for x
    x = 9,401,247,035.42/89,822.70
  6. Step 6: Final answer
    x = 104,664.49

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.