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Finding the Fourth Proportional to 358,735.95, 538,134.90 and 92,494.20

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Solution

The fourth proportional to 358,735.95, 538,134.90 and 92,494.20 is: 138,749.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,735.95 : 538,134.90 = 92,494.20 : x
  2. Step 2: Convert to fraction form
    358,735.95/538,134.90 = 92,494.20/x
  3. Step 3: Cross multiply
    358,735.95x = 538,134.90 × 92,494.20
  4. Step 4: Simplify right side
    358,735.95x = 49,774,357,067.58
  5. Step 5: Solve for x
    x = 49,774,357,067.58/358,735.95
  6. Step 6: Final answer
    x = 138,749.29

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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.