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Finding the Fourth Proportional to 94,940.36, 142,410.54 and 38,806.88

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Solution

The fourth proportional to 94,940.36, 142,410.54 and 38,806.88 is: 58,210.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,940.36 : 142,410.54 = 38,806.88 : x
  2. Step 2: Convert to fraction form
    94,940.36/142,410.54 = 38,806.88/x
  3. Step 3: Cross multiply
    94,940.36x = 142,410.54 × 38,806.88
  4. Step 4: Simplify right side
    94,940.36x = 5,526,508,736.52
  5. Step 5: Solve for x
    x = 5,526,508,736.52/94,940.36
  6. Step 6: Final answer
    x = 58,210.32

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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.