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Finding the Fourth Proportional to 358,840.56, 538,258.14 and 92,578.44

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Solution

The fourth proportional to 358,840.56, 538,258.14 and 92,578.44 is: 138,866.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,840.56 : 538,258.14 = 92,578.44 : x
  2. Step 2: Convert to fraction form
    358,840.56/538,258.14 = 92,578.44/x
  3. Step 3: Cross multiply
    358,840.56x = 538,258.14 × 92,578.44
  4. Step 4: Simplify right side
    358,840.56x = 49,831,098,918.50
  5. Step 5: Solve for x
    x = 49,831,098,918.50/358,840.56
  6. Step 6: Final answer
    x = 138,866.96

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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.