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Finding the Fourth Proportional to 131,808.80, 197,324.40 and 116,256.80

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Solution

The fourth proportional to 131,808.80, 197,324.40 and 116,256.80 is: 174,042.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,808.80 : 197,324.40 = 116,256.80 : x
  2. Step 2: Convert to fraction form
    131,808.80/197,324.40 = 116,256.80/x
  3. Step 3: Cross multiply
    131,808.80x = 197,324.40 × 116,256.80
  4. Step 4: Simplify right side
    131,808.80x = 22,940,303,305.92
  5. Step 5: Solve for x
    x = 22,940,303,305.92/131,808.80
  6. Step 6: Final answer
    x = 174,042.27

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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.