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Finding the Fourth Proportional to 197,487.89, 272,532.57 and 106,843.89

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Solution

The fourth proportional to 197,487.89, 272,532.57 and 106,843.89 is: 147,444.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,487.89 : 272,532.57 = 106,843.89 : x
  2. Step 2: Convert to fraction form
    197,487.89/272,532.57 = 106,843.89/x
  3. Step 3: Cross multiply
    197,487.89x = 272,532.57 × 106,843.89
  4. Step 4: Simplify right side
    197,487.89x = 29,118,439,930.50
  5. Step 5: Solve for x
    x = 29,118,439,930.50/197,487.89
  6. Step 6: Final answer
    x = 147,444.18

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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.