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Finding the Fourth Proportional to 116,220.96, 160,375.14 and 65,223.36

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Solution

The fourth proportional to 116,220.96, 160,375.14 and 65,223.36 is: 90,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,220.96 : 160,375.14 = 65,223.36 : x
  2. Step 2: Convert to fraction form
    116,220.96/160,375.14 = 65,223.36/x
  3. Step 3: Cross multiply
    116,220.96x = 160,375.14 × 65,223.36
  4. Step 4: Simplify right side
    116,220.96x = 10,460,205,491.27
  5. Step 5: Solve for x
    x = 10,460,205,491.27/116,220.96
  6. Step 6: Final answer
    x = 90,002.75

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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.