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Finding the Fourth Proportional to 99,213.44, 136,916.02 and 53,892.30

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Solution

The fourth proportional to 99,213.44, 136,916.02 and 53,892.30 is: 74,372.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,213.44 : 136,916.02 = 53,892.30 : x
  2. Step 2: Convert to fraction form
    99,213.44/136,916.02 = 53,892.30/x
  3. Step 3: Cross multiply
    99,213.44x = 136,916.02 × 53,892.30
  4. Step 4: Simplify right side
    99,213.44x = 7,378,719,224.65
  5. Step 5: Solve for x
    x = 7,378,719,224.65/99,213.44
  6. Step 6: Final answer
    x = 74,372.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.