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Finding the Fourth Proportional to 93,229.97, 128,666.64 and 56,929.41

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Solution

The fourth proportional to 93,229.97, 128,666.64 and 56,929.41 is: 78,568.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,229.97 : 128,666.64 = 56,929.41 : x
  2. Step 2: Convert to fraction form
    93,229.97/128,666.64 = 56,929.41/x
  3. Step 3: Cross multiply
    93,229.97x = 128,666.64 × 56,929.41
  4. Step 4: Simplify right side
    93,229.97x = 7,324,916,115.37
  5. Step 5: Solve for x
    x = 7,324,916,115.37/93,229.97
  6. Step 6: Final answer
    x = 78,568.26

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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.