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Finding the Fourth Proportional to 103,624.70, 155,501.05 and 41,288.70

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Solution

The fourth proportional to 103,624.70, 155,501.05 and 41,288.70 is: 61,958.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,624.70 : 155,501.05 = 41,288.70 : x
  2. Step 2: Convert to fraction form
    103,624.70/155,501.05 = 41,288.70/x
  3. Step 3: Cross multiply
    103,624.70x = 155,501.05 × 41,288.70
  4. Step 4: Simplify right side
    103,624.70x = 6,420,436,203.14
  5. Step 5: Solve for x
    x = 6,420,436,203.14/103,624.70
  6. Step 6: Final answer
    x = 61,958.55

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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.