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Finding the Fourth Proportional to 133,842.85, 184,633.17 and 79,363.32

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Solution

The fourth proportional to 133,842.85, 184,633.17 and 79,363.32 is: 109,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,842.85 : 184,633.17 = 79,363.32 : x
  2. Step 2: Convert to fraction form
    133,842.85/184,633.17 = 79,363.32/x
  3. Step 3: Cross multiply
    133,842.85x = 184,633.17 × 79,363.32
  4. Step 4: Simplify right side
    133,842.85x = 14,653,101,353.32
  5. Step 5: Solve for x
    x = 14,653,101,353.32/133,842.85
  6. Step 6: Final answer
    x = 109,479.90

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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.