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Finding the Fourth Proportional to 358,919.16, 538,380.83 and 92,661.49

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Solution

The fourth proportional to 358,919.16, 538,380.83 and 92,661.49 is: 138,992.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,919.16 : 538,380.83 = 92,661.49 : x
  2. Step 2: Convert to fraction form
    358,919.16/538,380.83 = 92,661.49/x
  3. Step 3: Cross multiply
    358,919.16x = 538,380.83 × 92,661.49
  4. Step 4: Simplify right side
    358,919.16x = 49,887,169,895.24
  5. Step 5: Solve for x
    x = 49,887,169,895.24/358,919.16
  6. Step 6: Final answer
    x = 138,992.77

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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.