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Finding the Fourth Proportional to 116,272.53, 160,459.11 and 65,289.29

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Solution

The fourth proportional to 116,272.53, 160,459.11 and 65,289.29 is: 90,100.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,272.53 : 160,459.11 = 65,289.29 : x
  2. Step 2: Convert to fraction form
    116,272.53/160,459.11 = 65,289.29/x
  3. Step 3: Cross multiply
    116,272.53x = 160,459.11 × 65,289.29
  4. Step 4: Simplify right side
    116,272.53x = 10,476,260,563.64
  5. Step 5: Solve for x
    x = 10,476,260,563.64/116,272.53
  6. Step 6: Final answer
    x = 90,100.91

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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.