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Finding the Fourth Proportional to 255,372.75, 382,917.58 and 118,446.50

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Solution

The fourth proportional to 255,372.75, 382,917.58 and 118,446.50 is: 177,604.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,372.75 : 382,917.58 = 118,446.50 : x
  2. Step 2: Convert to fraction form
    255,372.75/382,917.58 = 118,446.50/x
  3. Step 3: Cross multiply
    255,372.75x = 382,917.58 × 118,446.50
  4. Step 4: Simplify right side
    255,372.75x = 45,355,247,800.65
  5. Step 5: Solve for x
    x = 45,355,247,800.65/255,372.75
  6. Step 6: Final answer
    x = 177,604.10

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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.