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Finding the Fourth Proportional to 388,673.28, 583,048.44 and 108,190.44

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Solution

The fourth proportional to 388,673.28, 583,048.44 and 108,190.44 is: 162,296.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,673.28 : 583,048.44 = 108,190.44 : x
  2. Step 2: Convert to fraction form
    388,673.28/583,048.44 = 108,190.44/x
  3. Step 3: Cross multiply
    388,673.28x = 583,048.44 × 108,190.44
  4. Step 4: Simplify right side
    388,673.28x = 63,080,267,264.91
  5. Step 5: Solve for x
    x = 63,080,267,264.91/388,673.28
  6. Step 6: Final answer
    x = 162,296.38

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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.