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Finding the Fourth Proportional to 93,136.32, 139,602.42 and 43,201.44

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Solution

The fourth proportional to 93,136.32, 139,602.42 and 43,201.44 is: 64,754.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,136.32 : 139,602.42 = 43,201.44 : x
  2. Step 2: Convert to fraction form
    93,136.32/139,602.42 = 43,201.44/x
  3. Step 3: Cross multiply
    93,136.32x = 139,602.42 × 43,201.44
  4. Step 4: Simplify right side
    93,136.32x = 6,031,025,571.48
  5. Step 5: Solve for x
    x = 6,031,025,571.48/93,136.32
  6. Step 6: Final answer
    x = 64,754.82

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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.