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Finding the Fourth Proportional to 500,886.75, 751,373.88 and 126,909.75

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Solution

The fourth proportional to 500,886.75, 751,373.88 and 126,909.75 is: 190,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,886.75 : 751,373.88 = 126,909.75 : x
  2. Step 2: Convert to fraction form
    500,886.75/751,373.88 = 126,909.75/x
  3. Step 3: Cross multiply
    500,886.75x = 751,373.88 × 126,909.75
  4. Step 4: Simplify right side
    500,886.75x = 95,356,671,267.33
  5. Step 5: Solve for x
    x = 95,356,671,267.33/500,886.75
  6. Step 6: Final answer
    x = 190,375.71

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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.