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Finding the Fourth Proportional to 104,062.60, 155,921.10 and 89,201.80

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Solution

The fourth proportional to 104,062.60, 155,921.10 and 89,201.80 is: 133,654.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,062.60 : 155,921.10 = 89,201.80 : x
  2. Step 2: Convert to fraction form
    104,062.60/155,921.10 = 89,201.80/x
  3. Step 3: Cross multiply
    104,062.60x = 155,921.10 × 89,201.80
  4. Step 4: Simplify right side
    104,062.60x = 13,908,442,777.98
  5. Step 5: Solve for x
    x = 13,908,442,777.98/104,062.60
  6. Step 6: Final answer
    x = 133,654.58

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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.