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Finding the Fourth Proportional to 115,978.55, 173,884.80 and 44,840.30

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Solution

The fourth proportional to 115,978.55, 173,884.80 and 44,840.30 is: 67,228.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,978.55 : 173,884.80 = 44,840.30 : x
  2. Step 2: Convert to fraction form
    115,978.55/173,884.80 = 44,840.30/x
  3. Step 3: Cross multiply
    115,978.55x = 173,884.80 × 44,840.30
  4. Step 4: Simplify right side
    115,978.55x = 7,797,046,597.44
  5. Step 5: Solve for x
    x = 7,797,046,597.44/115,978.55
  6. Step 6: Final answer
    x = 67,228.35

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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.