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Finding the Fourth Proportional to 130,668.60, 196,020.18 and 41,892.60

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Solution

The fourth proportional to 130,668.60, 196,020.18 and 41,892.60 is: 62,844.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,668.60 : 196,020.18 = 41,892.60 : x
  2. Step 2: Convert to fraction form
    130,668.60/196,020.18 = 41,892.60/x
  3. Step 3: Cross multiply
    130,668.60x = 196,020.18 × 41,892.60
  4. Step 4: Simplify right side
    130,668.60x = 8,211,794,992.67
  5. Step 5: Solve for x
    x = 8,211,794,992.67/130,668.60
  6. Step 6: Final answer
    x = 62,844.44

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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.