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Finding the Fourth Proportional to 509,687.17, 764,533.17 and 154,704.25

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Solution

The fourth proportional to 509,687.17, 764,533.17 and 154,704.25 is: 232,057.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,687.17 : 764,533.17 = 154,704.25 : x
  2. Step 2: Convert to fraction form
    509,687.17/764,533.17 = 154,704.25/x
  3. Step 3: Cross multiply
    509,687.17x = 764,533.17 × 154,704.25
  4. Step 4: Simplify right side
    509,687.17x = 118,276,530,664.97
  5. Step 5: Solve for x
    x = 118,276,530,664.97/509,687.17
  6. Step 6: Final answer
    x = 232,057.11

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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.