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Finding the Fourth Proportional to 100,788.76, 151,171.39 and 37,611.06

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Solution

The fourth proportional to 100,788.76, 151,171.39 and 37,611.06 is: 56,412.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,788.76 : 151,171.39 = 37,611.06 : x
  2. Step 2: Convert to fraction form
    100,788.76/151,171.39 = 37,611.06/x
  3. Step 3: Cross multiply
    100,788.76x = 151,171.39 × 37,611.06
  4. Step 4: Simplify right side
    100,788.76x = 5,685,716,219.57
  5. Step 5: Solve for x
    x = 5,685,716,219.57/100,788.76
  6. Step 6: Final answer
    x = 56,412.21

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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.