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Finding the Fourth Proportional to 116,640.90, 174,750.12 and 53,513.82

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Solution

The fourth proportional to 116,640.90, 174,750.12 and 53,513.82 is: 80,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,640.90 : 174,750.12 = 53,513.82 : x
  2. Step 2: Convert to fraction form
    116,640.90/174,750.12 = 53,513.82/x
  3. Step 3: Cross multiply
    116,640.90x = 174,750.12 × 53,513.82
  4. Step 4: Simplify right side
    116,640.90x = 9,351,546,466.66
  5. Step 5: Solve for x
    x = 9,351,546,466.66/116,640.90
  6. Step 6: Final answer
    x = 80,173.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.