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Finding the Fourth Proportional to 358,733.72, 538,131.51 and 92,491.98

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Solution

The fourth proportional to 358,733.72, 538,131.51 and 92,491.98 is: 138,745.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,733.72 : 538,131.51 = 92,491.98 : x
  2. Step 2: Convert to fraction form
    358,733.72/538,131.51 = 92,491.98/x
  3. Step 3: Cross multiply
    358,733.72x = 538,131.51 × 92,491.98
  4. Step 4: Simplify right side
    358,733.72x = 49,772,848,860.29
  5. Step 5: Solve for x
    x = 49,772,848,860.29/358,733.72
  6. Step 6: Final answer
    x = 138,745.95

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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.