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Finding the Fourth Proportional to 378,285.39, 567,563.59 and 162,053.41

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Solution

The fourth proportional to 378,285.39, 567,563.59 and 162,053.41 is: 243,138.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,285.39 : 567,563.59 = 162,053.41 : x
  2. Step 2: Convert to fraction form
    378,285.39/567,563.59 = 162,053.41/x
  3. Step 3: Cross multiply
    378,285.39x = 567,563.59 × 162,053.41
  4. Step 4: Simplify right side
    378,285.39x = 91,975,614,999.18
  5. Step 5: Solve for x
    x = 91,975,614,999.18/378,285.39
  6. Step 6: Final answer
    x = 243,138.16

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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.