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Finding the Fourth Proportional to 158,373.72, 237,604.32 and 140,965.20

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Solution

The fourth proportional to 158,373.72, 237,604.32 and 140,965.20 is: 211,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,373.72 : 237,604.32 = 140,965.20 : x
  2. Step 2: Convert to fraction form
    158,373.72/237,604.32 = 140,965.20/x
  3. Step 3: Cross multiply
    158,373.72x = 237,604.32 × 140,965.20
  4. Step 4: Simplify right side
    158,373.72x = 33,493,940,489.66
  5. Step 5: Solve for x
    x = 33,493,940,489.66/158,373.72
  6. Step 6: Final answer
    x = 211,486.73

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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.