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Finding the Fourth Proportional to 500,842.53, 751,291.16 and 126,868.77

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Solution

The fourth proportional to 500,842.53, 751,291.16 and 126,868.77 is: 190,310.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,842.53 : 751,291.16 = 126,868.77 : x
  2. Step 2: Convert to fraction form
    500,842.53/751,291.16 = 126,868.77/x
  3. Step 3: Cross multiply
    500,842.53x = 751,291.16 × 126,868.77
  4. Step 4: Simplify right side
    500,842.53x = 95,315,384,746.73
  5. Step 5: Solve for x
    x = 95,315,384,746.73/500,842.53
  6. Step 6: Final answer
    x = 190,310.09

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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.