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Finding the Fourth Proportional to 500,170.12, 750,251.94 and 126,193.48

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Solution

The fourth proportional to 500,170.12, 750,251.94 and 126,193.48 is: 189,289.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,170.12 : 750,251.94 = 126,193.48 : x
  2. Step 2: Convert to fraction form
    500,170.12/750,251.94 = 126,193.48/x
  3. Step 3: Cross multiply
    500,170.12x = 750,251.94 × 126,193.48
  4. Step 4: Simplify right side
    500,170.12x = 94,676,903,185.35
  5. Step 5: Solve for x
    x = 94,676,903,185.35/500,170.12
  6. Step 6: Final answer
    x = 189,289.40

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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.