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Finding the Fourth Proportional to 89,325.88, 133,817.43 and 55,491.62

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Solution

The fourth proportional to 89,325.88, 133,817.43 and 55,491.62 is: 83,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,325.88 : 133,817.43 = 55,491.62 : x
  2. Step 2: Convert to fraction form
    89,325.88/133,817.43 = 55,491.62/x
  3. Step 3: Cross multiply
    89,325.88x = 133,817.43 × 55,491.62
  4. Step 4: Simplify right side
    89,325.88x = 7,425,746,309.48
  5. Step 5: Solve for x
    x = 7,425,746,309.48/89,325.88
  6. Step 6: Final answer
    x = 83,130.96

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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.