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Finding the Fourth Proportional to 115,881.20, 173,821.80 and 37,003.40

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Solution

The fourth proportional to 115,881.20, 173,821.80 and 37,003.40 is: 55,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,881.20 : 173,821.80 = 37,003.40 : x
  2. Step 2: Convert to fraction form
    115,881.20/173,821.80 = 37,003.40/x
  3. Step 3: Cross multiply
    115,881.20x = 173,821.80 × 37,003.40
  4. Step 4: Simplify right side
    115,881.20x = 6,431,997,594.12
  5. Step 5: Solve for x
    x = 6,431,997,594.12/115,881.20
  6. Step 6: Final answer
    x = 55,505.10

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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.