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Finding the Fourth Proportional to 358,841.06, 538,258.88 and 92,578.94

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Solution

The fourth proportional to 358,841.06, 538,258.88 and 92,578.94 is: 138,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,841.06 : 538,258.88 = 92,578.94 : x
  2. Step 2: Convert to fraction form
    358,841.06/538,258.88 = 92,578.94/x
  3. Step 3: Cross multiply
    358,841.06x = 538,258.88 × 92,578.94
  4. Step 4: Simplify right side
    358,841.06x = 49,831,436,555.99
  5. Step 5: Solve for x
    x = 49,831,436,555.99/358,841.06
  6. Step 6: Final answer
    x = 138,867.71

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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.