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Finding the Fourth Proportional to 93,676.21, 140,415.90 and 58,137.46

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Solution

The fourth proportional to 93,676.21, 140,415.90 and 58,137.46 is: 87,145.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,676.21 : 140,415.90 = 58,137.46 : x
  2. Step 2: Convert to fraction form
    93,676.21/140,415.90 = 58,137.46/x
  3. Step 3: Cross multiply
    93,676.21x = 140,415.90 × 58,137.46
  4. Step 4: Simplify right side
    93,676.21x = 8,163,423,769.61
  5. Step 5: Solve for x
    x = 8,163,423,769.61/93,676.21
  6. Step 6: Final answer
    x = 87,145.11

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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.