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Finding the Fourth Proportional to 89,772, 134,663.40 and 27,443.04

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Solution

The fourth proportional to 89,772, 134,663.40 and 27,443.04 is: 41,166.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,772 : 134,663.40 = 27,443.04 : x
  2. Step 2: Convert to fraction form
    89,772/134,663.40 = 27,443.04/x
  3. Step 3: Cross multiply
    89,772x = 134,663.40 × 27,443.04
  4. Step 4: Simplify right side
    89,772x = 3,695,573,072.74
  5. Step 5: Solve for x
    x = 3,695,573,072.74/89,772
  6. Step 6: Final answer
    x = 41,166.21

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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.