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Finding the Fourth Proportional to 93,696.60, 140,253.30 and 54,136.20

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Solution

The fourth proportional to 93,696.60, 140,253.30 and 54,136.20 is: 81,035.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,696.60 : 140,253.30 = 54,136.20 : x
  2. Step 2: Convert to fraction form
    93,696.60/140,253.30 = 54,136.20/x
  3. Step 3: Cross multiply
    93,696.60x = 140,253.30 × 54,136.20
  4. Step 4: Simplify right side
    93,696.60x = 7,592,780,699.46
  5. Step 5: Solve for x
    x = 7,592,780,699.46/93,696.60
  6. Step 6: Final answer
    x = 81,035.82

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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.