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Finding the Fourth Proportional to 116,636.30, 174,954.45 and 80,866.70

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Solution

The fourth proportional to 116,636.30, 174,954.45 and 80,866.70 is: 121,300.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,636.30 : 174,954.45 = 80,866.70 : x
  2. Step 2: Convert to fraction form
    116,636.30/174,954.45 = 80,866.70/x
  3. Step 3: Cross multiply
    116,636.30x = 174,954.45 × 80,866.70
  4. Step 4: Simplify right side
    116,636.30x = 14,147,989,021.82
  5. Step 5: Solve for x
    x = 14,147,989,021.82/116,636.30
  6. Step 6: Final answer
    x = 121,300.05

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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.