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Finding the Fourth Proportional to 115,914.40, 173,871.60 and 37,031.20

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Solution

The fourth proportional to 115,914.40, 173,871.60 and 37,031.20 is: 55,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,914.40 : 173,871.60 = 37,031.20 : x
  2. Step 2: Convert to fraction form
    115,914.40/173,871.60 = 37,031.20/x
  3. Step 3: Cross multiply
    115,914.40x = 173,871.60 × 37,031.20
  4. Step 4: Simplify right side
    115,914.40x = 6,438,673,993.92
  5. Step 5: Solve for x
    x = 6,438,673,993.92/115,914.40
  6. Step 6: Final answer
    x = 55,546.80

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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.