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Finding the Fourth Proportional to 103,201.65, 154,654.25 and 44,021.43

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Solution

The fourth proportional to 103,201.65, 154,654.25 and 44,021.43 is: 65,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,201.65 : 154,654.25 = 44,021.43 : x
  2. Step 2: Convert to fraction form
    103,201.65/154,654.25 = 44,021.43/x
  3. Step 3: Cross multiply
    103,201.65x = 154,654.25 × 44,021.43
  4. Step 4: Simplify right side
    103,201.65x = 6,808,101,020.47
  5. Step 5: Solve for x
    x = 6,808,101,020.47/103,201.65
  6. Step 6: Final answer
    x = 65,968.92

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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.