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Finding the Fourth Proportional to 118,998.99, 164,206.44 and 71,251.11

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Solution

The fourth proportional to 118,998.99, 164,206.44 and 71,251.11 is: 98,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,998.99 : 164,206.44 = 71,251.11 : x
  2. Step 2: Convert to fraction form
    118,998.99/164,206.44 = 71,251.11/x
  3. Step 3: Cross multiply
    118,998.99x = 164,206.44 × 71,251.11
  4. Step 4: Simplify right side
    118,998.99x = 11,699,891,119.15
  5. Step 5: Solve for x
    x = 11,699,891,119.15/118,998.99
  6. Step 6: Final answer
    x = 98,319.25

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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.