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Finding the Fourth Proportional to 93,635.78, 140,489.13 and 56,221.98

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Solution

The fourth proportional to 93,635.78, 140,489.13 and 56,221.98 is: 84,354.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,635.78 : 140,489.13 = 56,221.98 : x
  2. Step 2: Convert to fraction form
    93,635.78/140,489.13 = 56,221.98/x
  3. Step 3: Cross multiply
    93,635.78x = 140,489.13 × 56,221.98
  4. Step 4: Simplify right side
    93,635.78x = 7,898,577,057.08
  5. Step 5: Solve for x
    x = 7,898,577,057.08/93,635.78
  6. Step 6: Final answer
    x = 84,354.27

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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.