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Finding the Fourth Proportional to 103,013.91, 154,585.87 and 43,849.49

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Solution

The fourth proportional to 103,013.91, 154,585.87 and 43,849.49 is: 65,801.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,013.91 : 154,585.87 = 43,849.49 : x
  2. Step 2: Convert to fraction form
    103,013.91/154,585.87 = 43,849.49/x
  3. Step 3: Cross multiply
    103,013.91x = 154,585.87 × 43,849.49
  4. Step 4: Simplify right side
    103,013.91x = 6,778,511,560.71
  5. Step 5: Solve for x
    x = 6,778,511,560.71/103,013.91
  6. Step 6: Final answer
    x = 65,801.91

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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.