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Finding the Fourth Proportional to 93,327.20, 140,136.60 and 53,961.20

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Solution

The fourth proportional to 93,327.20, 140,136.60 and 53,961.20 is: 81,026.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,327.20 : 140,136.60 = 53,961.20 : x
  2. Step 2: Convert to fraction form
    93,327.20/140,136.60 = 53,961.20/x
  3. Step 3: Cross multiply
    93,327.20x = 140,136.60 × 53,961.20
  4. Step 4: Simplify right side
    93,327.20x = 7,561,939,099.92
  5. Step 5: Solve for x
    x = 7,561,939,099.92/93,327.20
  6. Step 6: Final answer
    x = 81,026.10

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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.