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Finding the Fourth Proportional to 116,283.65, 160,469.38 and 65,296.79

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Solution

The fourth proportional to 116,283.65, 160,469.38 and 65,296.79 is: 90,108.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,283.65 : 160,469.38 = 65,296.79 : x
  2. Step 2: Convert to fraction form
    116,283.65/160,469.38 = 65,296.79/x
  3. Step 3: Cross multiply
    116,283.65x = 160,469.38 × 65,296.79
  4. Step 4: Simplify right side
    116,283.65x = 10,478,135,407.29
  5. Step 5: Solve for x
    x = 10,478,135,407.29/116,283.65
  6. Step 6: Final answer
    x = 90,108.42

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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.