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Finding the Fourth Proportional to 388,099.71, 582,242.94 and 163,524.38

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Solution

The fourth proportional to 388,099.71, 582,242.94 and 163,524.38 is: 245,325.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,099.71 : 582,242.94 = 163,524.38 : x
  2. Step 2: Convert to fraction form
    388,099.71/582,242.94 = 163,524.38/x
  3. Step 3: Cross multiply
    388,099.71x = 582,242.94 × 163,524.38
  4. Step 4: Simplify right side
    388,099.71x = 95,210,912,861.66
  5. Step 5: Solve for x
    x = 95,210,912,861.66/388,099.71
  6. Step 6: Final answer
    x = 245,325.91

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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.