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Finding the Fourth Proportional to 492,687.54, 739,031.94 and 118,710.54

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Solution

The fourth proportional to 492,687.54, 739,031.94 and 118,710.54 is: 178,065.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,687.54 : 739,031.94 = 118,710.54 : x
  2. Step 2: Convert to fraction form
    492,687.54/739,031.94 = 118,710.54/x
  3. Step 3: Cross multiply
    492,687.54x = 739,031.94 × 118,710.54
  4. Step 4: Simplify right side
    492,687.54x = 87,730,880,674.65
  5. Step 5: Solve for x
    x = 87,730,880,674.65/492,687.54
  6. Step 6: Final answer
    x = 178,065.96

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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.