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Finding the Fourth Proportional to 116,694.90, 175,066.65 and 66,734.10

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Solution

The fourth proportional to 116,694.90, 175,066.65 and 66,734.10 is: 100,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,694.90 : 175,066.65 = 66,734.10 : x
  2. Step 2: Convert to fraction form
    116,694.90/175,066.65 = 66,734.10/x
  3. Step 3: Cross multiply
    116,694.90x = 175,066.65 × 66,734.10
  4. Step 4: Simplify right side
    116,694.90x = 11,682,915,327.77
  5. Step 5: Solve for x
    x = 11,682,915,327.77/116,694.90
  6. Step 6: Final answer
    x = 100,115.05

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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.