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Finding the Fourth Proportional to 98,391.80, 147,659.39 and 39,244.39

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Solution

The fourth proportional to 98,391.80, 147,659.39 and 39,244.39 is: 58,895.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,391.80 : 147,659.39 = 39,244.39 : x
  2. Step 2: Convert to fraction form
    98,391.80/147,659.39 = 39,244.39/x
  3. Step 3: Cross multiply
    98,391.80x = 147,659.39 × 39,244.39
  4. Step 4: Simplify right side
    98,391.80x = 5,794,802,270.12
  5. Step 5: Solve for x
    x = 5,794,802,270.12/98,391.80
  6. Step 6: Final answer
    x = 58,895.17

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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.