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Finding the Fourth Proportional to 603,812.62, 905,718.17 and 154,533.71

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Solution

The fourth proportional to 603,812.62, 905,718.17 and 154,533.71 is: 231,800.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,812.62 : 905,718.17 = 154,533.71 : x
  2. Step 2: Convert to fraction form
    603,812.62/905,718.17 = 154,533.71/x
  3. Step 3: Cross multiply
    603,812.62x = 905,718.17 × 154,533.71
  4. Step 4: Simplify right side
    603,812.62x = 139,963,990,516.14
  5. Step 5: Solve for x
    x = 139,963,990,516.14/603,812.62
  6. Step 6: Final answer
    x = 231,800.37

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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.