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Finding the Fourth Proportional to 143,956.76, 215,935.16 and 73,791.32

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Solution

The fourth proportional to 143,956.76, 215,935.16 and 73,791.32 is: 110,686.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,956.76 : 215,935.16 = 73,791.32 : x
  2. Step 2: Convert to fraction form
    143,956.76/215,935.16 = 73,791.32/x
  3. Step 3: Cross multiply
    143,956.76x = 215,935.16 × 73,791.32
  4. Step 4: Simplify right side
    143,956.76x = 15,934,139,042.18
  5. Step 5: Solve for x
    x = 15,934,139,042.18/143,956.76
  6. Step 6: Final answer
    x = 110,686.98

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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.