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Finding the Fourth Proportional to 116,755.76, 175,021.50 and 74,516.60

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Solution

The fourth proportional to 116,755.76, 175,021.50 and 74,516.60 is: 111,703.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,755.76 : 175,021.50 = 74,516.60 : x
  2. Step 2: Convert to fraction form
    116,755.76/175,021.50 = 74,516.60/x
  3. Step 3: Cross multiply
    116,755.76x = 175,021.50 × 74,516.60
  4. Step 4: Simplify right side
    116,755.76x = 13,042,007,106.90
  5. Step 5: Solve for x
    x = 13,042,007,106.90/116,755.76
  6. Step 6: Final answer
    x = 111,703.33

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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.