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Finding the Fourth Proportional to 84,052.48, 115,991.84 and 45,811.92

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Solution

The fourth proportional to 84,052.48, 115,991.84 and 45,811.92 is: 63,220.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,052.48 : 115,991.84 = 45,811.92 : x
  2. Step 2: Convert to fraction form
    84,052.48/115,991.84 = 45,811.92/x
  3. Step 3: Cross multiply
    84,052.48x = 115,991.84 × 45,811.92
  4. Step 4: Simplify right side
    84,052.48x = 5,313,808,894.73
  5. Step 5: Solve for x
    x = 5,313,808,894.73/84,052.48
  6. Step 6: Final answer
    x = 63,220.13

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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.