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Finding the Fourth Proportional to 121,805.38, 182,739.60 and 37,563.68

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Solution

The fourth proportional to 121,805.38, 182,739.60 and 37,563.68 is: 56,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,805.38 : 182,739.60 = 37,563.68 : x
  2. Step 2: Convert to fraction form
    121,805.38/182,739.60 = 37,563.68/x
  3. Step 3: Cross multiply
    121,805.38x = 182,739.60 × 37,563.68
  4. Step 4: Simplify right side
    121,805.38x = 6,864,372,173.71
  5. Step 5: Solve for x
    x = 6,864,372,173.71/121,805.38
  6. Step 6: Final answer
    x = 56,355.25

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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.