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Finding the Fourth Proportional to 382,285.20, 573,500.40 and 126,133.32

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Solution

The fourth proportional to 382,285.20, 573,500.40 and 126,133.32 is: 189,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,285.20 : 573,500.40 = 126,133.32 : x
  2. Step 2: Convert to fraction form
    382,285.20/573,500.40 = 126,133.32/x
  3. Step 3: Cross multiply
    382,285.20x = 573,500.40 × 126,133.32
  4. Step 4: Simplify right side
    382,285.20x = 72,337,509,473.33
  5. Step 5: Solve for x
    x = 72,337,509,473.33/382,285.20
  6. Step 6: Final answer
    x = 189,223.93

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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.