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Finding the Fourth Proportional to 613,151.84, 919,866.24 and 186,725.92

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Solution

The fourth proportional to 613,151.84, 919,866.24 and 186,725.92 is: 280,131.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,151.84 : 919,866.24 = 186,725.92 : x
  2. Step 2: Convert to fraction form
    613,151.84/919,866.24 = 186,725.92/x
  3. Step 3: Cross multiply
    613,151.84x = 919,866.24 × 186,725.92
  4. Step 4: Simplify right side
    613,151.84x = 171,762,869,940.94
  5. Step 5: Solve for x
    x = 171,762,869,940.94/613,151.84
  6. Step 6: Final answer
    x = 280,131.05

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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.