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Finding the Fourth Proportional to 171,930.80, 258,090.60 and 101,849.60

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Solution

The fourth proportional to 171,930.80, 258,090.60 and 101,849.60 is: 152,889.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,930.80 : 258,090.60 = 101,849.60 : x
  2. Step 2: Convert to fraction form
    171,930.80/258,090.60 = 101,849.60/x
  3. Step 3: Cross multiply
    171,930.80x = 258,090.60 × 101,849.60
  4. Step 4: Simplify right side
    171,930.80x = 26,286,424,373.76
  5. Step 5: Solve for x
    x = 26,286,424,373.76/171,930.80
  6. Step 6: Final answer
    x = 152,889.56

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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.