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Finding the Fourth Proportional to 492,095.50, 738,143.28 and 118,118.50

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Solution

The fourth proportional to 492,095.50, 738,143.28 and 118,118.50 is: 177,177.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,095.50 : 738,143.28 = 118,118.50 : x
  2. Step 2: Convert to fraction form
    492,095.50/738,143.28 = 118,118.50/x
  3. Step 3: Cross multiply
    492,095.50x = 738,143.28 × 118,118.50
  4. Step 4: Simplify right side
    492,095.50x = 87,188,377,018.68
  5. Step 5: Solve for x
    x = 87,188,377,018.68/492,095.50
  6. Step 6: Final answer
    x = 177,177.76

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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.