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Finding the Fourth Proportional to 84,052.80, 115,989.12 and 46,324.80

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Solution

The fourth proportional to 84,052.80, 115,989.12 and 46,324.80 is: 63,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,052.80 : 115,989.12 = 46,324.80 : x
  2. Step 2: Convert to fraction form
    84,052.80/115,989.12 = 46,324.80/x
  3. Step 3: Cross multiply
    84,052.80x = 115,989.12 × 46,324.80
  4. Step 4: Simplify right side
    84,052.80x = 5,373,172,786.18
  5. Step 5: Solve for x
    x = 5,373,172,786.18/84,052.80
  6. Step 6: Final answer
    x = 63,926.16

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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.