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Finding the Fourth Proportional to 103,691.63, 155,288.30 and 59,183.46

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Solution

The fourth proportional to 103,691.63, 155,288.30 and 59,183.46 is: 88,632.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,691.63 : 155,288.30 = 59,183.46 : x
  2. Step 2: Convert to fraction form
    103,691.63/155,288.30 = 59,183.46/x
  3. Step 3: Cross multiply
    103,691.63x = 155,288.30 × 59,183.46
  4. Step 4: Simplify right side
    103,691.63x = 9,190,498,595.60
  5. Step 5: Solve for x
    x = 9,190,498,595.60/103,691.63
  6. Step 6: Final answer
    x = 88,632.98

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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.