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Finding the Fourth Proportional to 118,873.35, 178,290.90 and 43,976.34

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Solution

The fourth proportional to 118,873.35, 178,290.90 and 43,976.34 is: 65,957.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,873.35 : 178,290.90 = 43,976.34 : x
  2. Step 2: Convert to fraction form
    118,873.35/178,290.90 = 43,976.34/x
  3. Step 3: Cross multiply
    118,873.35x = 178,290.90 × 43,976.34
  4. Step 4: Simplify right side
    118,873.35x = 7,840,581,237.31
  5. Step 5: Solve for x
    x = 7,840,581,237.31/118,873.35
  6. Step 6: Final answer
    x = 65,957.43

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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.