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Finding the Fourth Proportional to 115,915.55, 173,790.30 and 44,777.30

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Solution

The fourth proportional to 115,915.55, 173,790.30 and 44,777.30 is: 67,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,915.55 : 173,790.30 = 44,777.30 : x
  2. Step 2: Convert to fraction form
    115,915.55/173,790.30 = 44,777.30/x
  3. Step 3: Cross multiply
    115,915.55x = 173,790.30 × 44,777.30
  4. Step 4: Simplify right side
    115,915.55x = 7,781,860,400.19
  5. Step 5: Solve for x
    x = 7,781,860,400.19/115,915.55
  6. Step 6: Final answer
    x = 67,133.88

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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.