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Finding the Fourth Proportional to 275,101.80, 384,355.20 and 275,101.80

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Solution

The fourth proportional to 275,101.80, 384,355.20 and 275,101.80 is: 384,355.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,101.80 : 384,355.20 = 275,101.80 : x
  2. Step 2: Convert to fraction form
    275,101.80/384,355.20 = 275,101.80/x
  3. Step 3: Cross multiply
    275,101.80x = 384,355.20 × 275,101.80
  4. Step 4: Simplify right side
    275,101.80x = 105,736,807,359.36
  5. Step 5: Solve for x
    x = 105,736,807,359.36/275,101.80
  6. Step 6: Final answer
    x = 384,355.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.