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Finding the Fourth Proportional to 116,349.72, 160,553.15 and 65,359.68

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Solution

The fourth proportional to 116,349.72, 160,553.15 and 65,359.68 is: 90,191.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,349.72 : 160,553.15 = 65,359.68 : x
  2. Step 2: Convert to fraction form
    116,349.72/160,553.15 = 65,359.68/x
  3. Step 3: Cross multiply
    116,349.72x = 160,553.15 × 65,359.68
  4. Step 4: Simplify right side
    116,349.72x = 10,493,701,377.43
  5. Step 5: Solve for x
    x = 10,493,701,377.43/116,349.72
  6. Step 6: Final answer
    x = 90,191.04

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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.