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Finding the Fourth Proportional to 192,764.60, 266,184.06 and 121,268.60

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Solution

The fourth proportional to 192,764.60, 266,184.06 and 121,268.60 is: 167,456.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,764.60 : 266,184.06 = 121,268.60 : x
  2. Step 2: Convert to fraction form
    192,764.60/266,184.06 = 121,268.60/x
  3. Step 3: Cross multiply
    192,764.60x = 266,184.06 × 121,268.60
  4. Step 4: Simplify right side
    192,764.60x = 32,279,768,298.52
  5. Step 5: Solve for x
    x = 32,279,768,298.52/192,764.60
  6. Step 6: Final answer
    x = 167,456.93

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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.