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Finding the Fourth Proportional to 388,243.18, 582,277.28 and 151,463.98

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Solution

The fourth proportional to 388,243.18, 582,277.28 and 151,463.98 is: 227,161.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,243.18 : 582,277.28 = 151,463.98 : x
  2. Step 2: Convert to fraction form
    388,243.18/582,277.28 = 151,463.98/x
  3. Step 3: Cross multiply
    388,243.18x = 582,277.28 × 151,463.98
  4. Step 4: Simplify right side
    388,243.18x = 88,194,033,215.34
  5. Step 5: Solve for x
    x = 88,194,033,215.34/388,243.18
  6. Step 6: Final answer
    x = 227,161.84

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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.