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Finding the Fourth Proportional to 93,469.76, 128,983.77 and 53,179.76

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Solution

The fourth proportional to 93,469.76, 128,983.77 and 53,179.76 is: 73,385.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,469.76 : 128,983.77 = 53,179.76 : x
  2. Step 2: Convert to fraction form
    93,469.76/128,983.77 = 53,179.76/x
  3. Step 3: Cross multiply
    93,469.76x = 128,983.77 × 53,179.76
  4. Step 4: Simplify right side
    93,469.76x = 6,859,325,932.50
  5. Step 5: Solve for x
    x = 6,859,325,932.50/93,469.76
  6. Step 6: Final answer
    x = 73,385.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.