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Finding the Fourth Proportional to 84,190.96, 116,203.48 and 48,401.75

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Solution

The fourth proportional to 84,190.96, 116,203.48 and 48,401.75 is: 66,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,190.96 : 116,203.48 = 48,401.75 : x
  2. Step 2: Convert to fraction form
    84,190.96/116,203.48 = 48,401.75/x
  3. Step 3: Cross multiply
    84,190.96x = 116,203.48 × 48,401.75
  4. Step 4: Simplify right side
    84,190.96x = 5,624,451,957.59
  5. Step 5: Solve for x
    x = 5,624,451,957.59/84,190.96
  6. Step 6: Final answer
    x = 66,805.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.