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Finding the Fourth Proportional to 100,606.84, 150,975.78 and 38,277.88

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Solution

The fourth proportional to 100,606.84, 150,975.78 and 38,277.88 is: 57,441.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,606.84 : 150,975.78 = 38,277.88 : x
  2. Step 2: Convert to fraction form
    100,606.84/150,975.78 = 38,277.88/x
  3. Step 3: Cross multiply
    100,606.84x = 150,975.78 × 38,277.88
  4. Step 4: Simplify right side
    100,606.84x = 5,779,032,789.75
  5. Step 5: Solve for x
    x = 5,779,032,789.75/100,606.84
  6. Step 6: Final answer
    x = 57,441.75

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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.