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Finding the Fourth Proportional to 143,717.34, 215,602.11 and 48,942.66

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Solution

The fourth proportional to 143,717.34, 215,602.11 and 48,942.66 is: 73,422.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,717.34 : 215,602.11 = 48,942.66 : x
  2. Step 2: Convert to fraction form
    143,717.34/215,602.11 = 48,942.66/x
  3. Step 3: Cross multiply
    143,717.34x = 215,602.11 × 48,942.66
  4. Step 4: Simplify right side
    143,717.34x = 10,552,140,765.01
  5. Step 5: Solve for x
    x = 10,552,140,765.01/143,717.34
  6. Step 6: Final answer
    x = 73,422.88

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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.