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Finding the Fourth Proportional to 492,563.72, 738,845.70 and 118,586.76

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Solution

The fourth proportional to 492,563.72, 738,845.70 and 118,586.76 is: 177,880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,563.72 : 738,845.70 = 118,586.76 : x
  2. Step 2: Convert to fraction form
    492,563.72/738,845.70 = 118,586.76/x
  3. Step 3: Cross multiply
    492,563.72x = 738,845.70 × 118,586.76
  4. Step 4: Simplify right side
    492,563.72x = 87,617,317,702.93
  5. Step 5: Solve for x
    x = 87,617,317,702.93/492,563.72
  6. Step 6: Final answer
    x = 177,880.17

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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.