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Finding the Fourth Proportional to 131,796.80, 197,714.40 and 43,054.40

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Solution

The fourth proportional to 131,796.80, 197,714.40 and 43,054.40 is: 64,587.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,796.80 : 197,714.40 = 43,054.40 : x
  2. Step 2: Convert to fraction form
    131,796.80/197,714.40 = 43,054.40/x
  3. Step 3: Cross multiply
    131,796.80x = 197,714.40 × 43,054.40
  4. Step 4: Simplify right side
    131,796.80x = 8,512,474,863.36
  5. Step 5: Solve for x
    x = 8,512,474,863.36/131,796.80
  6. Step 6: Final answer
    x = 64,587.87

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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.