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Finding the Fourth Proportional to 500,169.12, 750,250.44 and 126,192.48

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Solution

The fourth proportional to 500,169.12, 750,250.44 and 126,192.48 is: 189,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,169.12 : 750,250.44 = 126,192.48 : x
  2. Step 2: Convert to fraction form
    500,169.12/750,250.44 = 126,192.48/x
  3. Step 3: Cross multiply
    500,169.12x = 750,250.44 × 126,192.48
  4. Step 4: Simplify right side
    500,169.12x = 94,675,963,644.69
  5. Step 5: Solve for x
    x = 94,675,963,644.69/500,169.12
  6. Step 6: Final answer
    x = 189,287.90

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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.