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Finding the Fourth Proportional to 103,811.40, 155,710.56 and 37,249.68

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Solution

The fourth proportional to 103,811.40, 155,710.56 and 37,249.68 is: 55,872.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,811.40 : 155,710.56 = 37,249.68 : x
  2. Step 2: Convert to fraction form
    103,811.40/155,710.56 = 37,249.68/x
  3. Step 3: Cross multiply
    103,811.40x = 155,710.56 × 37,249.68
  4. Step 4: Simplify right side
    103,811.40x = 5,800,168,532.62
  5. Step 5: Solve for x
    x = 5,800,168,532.62/103,811.40
  6. Step 6: Final answer
    x = 55,872.17

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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.