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Finding the Fourth Proportional to 93,489.30, 140,282.55 and 40,904.10

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Solution

The fourth proportional to 93,489.30, 140,282.55 and 40,904.10 is: 61,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,489.30 : 140,282.55 = 40,904.10 : x
  2. Step 2: Convert to fraction form
    93,489.30/140,282.55 = 40,904.10/x
  3. Step 3: Cross multiply
    93,489.30x = 140,282.55 × 40,904.10
  4. Step 4: Simplify right side
    93,489.30x = 5,738,131,453.46
  5. Step 5: Solve for x
    x = 5,738,131,453.46/93,489.30
  6. Step 6: Final answer
    x = 61,377.41

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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.