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Finding the Fourth Proportional to 98,982.34, 136,563.50 and 55,957.68

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Solution

The fourth proportional to 98,982.34, 136,563.50 and 55,957.68 is: 77,203.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,982.34 : 136,563.50 = 55,957.68 : x
  2. Step 2: Convert to fraction form
    98,982.34/136,563.50 = 55,957.68/x
  3. Step 3: Cross multiply
    98,982.34x = 136,563.50 × 55,957.68
  4. Step 4: Simplify right side
    98,982.34x = 7,641,776,632.68
  5. Step 5: Solve for x
    x = 7,641,776,632.68/98,982.34
  6. Step 6: Final answer
    x = 77,203.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.