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Finding the Fourth Proportional to 93,190.56, 139,575.54 and 43,165.58

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Solution

The fourth proportional to 93,190.56, 139,575.54 and 43,165.58 is: 64,650.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,190.56 : 139,575.54 = 43,165.58 : x
  2. Step 2: Convert to fraction form
    93,190.56/139,575.54 = 43,165.58/x
  3. Step 3: Cross multiply
    93,190.56x = 139,575.54 × 43,165.58
  4. Step 4: Simplify right side
    93,190.56x = 6,024,859,137.91
  5. Step 5: Solve for x
    x = 6,024,859,137.91/93,190.56
  6. Step 6: Final answer
    x = 64,650.96

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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.