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Finding the Fourth Proportional to 118,581.72, 177,842.34 and 48,447.96

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Solution

The fourth proportional to 118,581.72, 177,842.34 and 48,447.96 is: 72,659.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,581.72 : 177,842.34 = 48,447.96 : x
  2. Step 2: Convert to fraction form
    118,581.72/177,842.34 = 48,447.96/x
  3. Step 3: Cross multiply
    118,581.72x = 177,842.34 × 48,447.96
  4. Step 4: Simplify right side
    118,581.72x = 8,616,098,574.63
  5. Step 5: Solve for x
    x = 8,616,098,574.63/118,581.72
  6. Step 6: Final answer
    x = 72,659.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.