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Finding the Fourth Proportional to 133,786.60, 184,599.48 and 79,328.68

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Solution

The fourth proportional to 133,786.60, 184,599.48 and 79,328.68 is: 109,458.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,786.60 : 184,599.48 = 79,328.68 : x
  2. Step 2: Convert to fraction form
    133,786.60/184,599.48 = 79,328.68/x
  3. Step 3: Cross multiply
    133,786.60x = 184,599.48 × 79,328.68
  4. Step 4: Simplify right side
    133,786.60x = 14,644,033,077.09
  5. Step 5: Solve for x
    x = 14,644,033,077.09/133,786.60
  6. Step 6: Final answer
    x = 109,458.15

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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.