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Finding the Fourth Proportional to 93,818.34, 140,742.99 and 30,620.16

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Solution

The fourth proportional to 93,818.34, 140,742.99 and 30,620.16 is: 45,935.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,818.34 : 140,742.99 = 30,620.16 : x
  2. Step 2: Convert to fraction form
    93,818.34/140,742.99 = 30,620.16/x
  3. Step 3: Cross multiply
    93,818.34x = 140,742.99 × 30,620.16
  4. Step 4: Simplify right side
    93,818.34x = 4,309,572,872.68
  5. Step 5: Solve for x
    x = 4,309,572,872.68/93,818.34
  6. Step 6: Final answer
    x = 45,935.29

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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.