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Finding the Fourth Proportional to 372,671.11, 559,015.80 and 136,013.73

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Solution

The fourth proportional to 372,671.11, 559,015.80 and 136,013.73 is: 204,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,671.11 : 559,015.80 = 136,013.73 : x
  2. Step 2: Convert to fraction form
    372,671.11/559,015.80 = 136,013.73/x
  3. Step 3: Cross multiply
    372,671.11x = 559,015.80 × 136,013.73
  4. Step 4: Simplify right side
    372,671.11x = 76,033,824,086.93
  5. Step 5: Solve for x
    x = 76,033,824,086.93/372,671.11
  6. Step 6: Final answer
    x = 204,023.93

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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.