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Finding the Fourth Proportional to 388,563.76, 582,846.60 and 108,081.04

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Solution

The fourth proportional to 388,563.76, 582,846.60 and 108,081.04 is: 162,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,563.76 : 582,846.60 = 108,081.04 : x
  2. Step 2: Convert to fraction form
    388,563.76/582,846.60 = 108,081.04/x
  3. Step 3: Cross multiply
    388,563.76x = 582,846.60 × 108,081.04
  4. Step 4: Simplify right side
    388,563.76x = 62,994,666,688.46
  5. Step 5: Solve for x
    x = 62,994,666,688.46/388,563.76
  6. Step 6: Final answer
    x = 162,121.83

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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.