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Finding the Fourth Proportional to 121,404.20, 182,099.80 and 37,164.40

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Solution

The fourth proportional to 121,404.20, 182,099.80 and 37,164.40 is: 55,744.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,404.20 : 182,099.80 = 37,164.40 : x
  2. Step 2: Convert to fraction form
    121,404.20/182,099.80 = 37,164.40/x
  3. Step 3: Cross multiply
    121,404.20x = 182,099.80 × 37,164.40
  4. Step 4: Simplify right side
    121,404.20x = 6,767,629,807.12
  5. Step 5: Solve for x
    x = 6,767,629,807.12/121,404.20
  6. Step 6: Final answer
    x = 55,744.61

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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.