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Finding the Fourth Proportional to 500,751.56, 751,127.88 and 126,774.56

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Solution

The fourth proportional to 500,751.56, 751,127.88 and 126,774.56 is: 190,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,751.56 : 751,127.88 = 126,774.56 : x
  2. Step 2: Convert to fraction form
    500,751.56/751,127.88 = 126,774.56/x
  3. Step 3: Cross multiply
    500,751.56x = 751,127.88 × 126,774.56
  4. Step 4: Simplify right side
    500,751.56x = 95,223,906,490.73
  5. Step 5: Solve for x
    x = 95,223,906,490.73/500,751.56
  6. Step 6: Final answer
    x = 190,161.98

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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.