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Finding the Fourth Proportional to 192,762.60, 266,181.30 and 121,266.60

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Solution

The fourth proportional to 192,762.60, 266,181.30 and 121,266.60 is: 167,454.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,762.60 : 266,181.30 = 121,266.60 : x
  2. Step 2: Convert to fraction form
    192,762.60/266,181.30 = 121,266.60/x
  3. Step 3: Cross multiply
    192,762.60x = 266,181.30 × 121,266.60
  4. Step 4: Simplify right side
    192,762.60x = 32,278,901,234.58
  5. Step 5: Solve for x
    x = 32,278,901,234.58/192,762.60
  6. Step 6: Final answer
    x = 167,454.17

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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.