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Finding the Fourth Proportional to 133,620.25, 184,390.54 and 79,934.94

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Solution

The fourth proportional to 133,620.25, 184,390.54 and 79,934.94 is: 110,306.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,620.25 : 184,390.54 = 79,934.94 : x
  2. Step 2: Convert to fraction form
    133,620.25/184,390.54 = 79,934.94/x
  3. Step 3: Cross multiply
    133,620.25x = 184,390.54 × 79,934.94
  4. Step 4: Simplify right side
    133,620.25x = 14,739,246,751.47
  5. Step 5: Solve for x
    x = 14,739,246,751.47/133,620.25
  6. Step 6: Final answer
    x = 110,306.98

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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.