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Finding the Fourth Proportional to 93,856, 129,521.28 and 51,414.70

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Solution

The fourth proportional to 93,856, 129,521.28 and 51,414.70 is: 70,952.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,856 : 129,521.28 = 51,414.70 : x
  2. Step 2: Convert to fraction form
    93,856/129,521.28 = 51,414.70/x
  3. Step 3: Cross multiply
    93,856x = 129,521.28 × 51,414.70
  4. Step 4: Simplify right side
    93,856x = 6,659,297,754.82
  5. Step 5: Solve for x
    x = 6,659,297,754.82/93,856
  6. Step 6: Final answer
    x = 70,952.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.