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Finding the Fourth Proportional to 93,219.28, 139,717.92 and 53,694.52

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Solution

The fourth proportional to 93,219.28, 139,717.92 and 53,694.52 is: 80,477.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,219.28 : 139,717.92 = 53,694.52 : x
  2. Step 2: Convert to fraction form
    93,219.28/139,717.92 = 53,694.52/x
  3. Step 3: Cross multiply
    93,219.28x = 139,717.92 × 53,694.52
  4. Step 4: Simplify right side
    93,219.28x = 7,502,086,649.80
  5. Step 5: Solve for x
    x = 7,502,086,649.80/93,219.28
  6. Step 6: Final answer
    x = 80,477.84

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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.