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Finding the Fourth Proportional to 143,796.64, 215,695.50 and 43,956.46

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Solution

The fourth proportional to 143,796.64, 215,695.50 and 43,956.46 is: 65,934.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,796.64 : 215,695.50 = 43,956.46 : x
  2. Step 2: Convert to fraction form
    143,796.64/215,695.50 = 43,956.46/x
  3. Step 3: Cross multiply
    143,796.64x = 215,695.50 × 43,956.46
  4. Step 4: Simplify right side
    143,796.64x = 9,481,210,617.93
  5. Step 5: Solve for x
    x = 9,481,210,617.93/143,796.64
  6. Step 6: Final answer
    x = 65,934.86

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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.