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Finding the Fourth Proportional to 115,658.56, 173,438.88 and 36,751.60

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Solution

The fourth proportional to 115,658.56, 173,438.88 and 36,751.60 is: 55,111.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,658.56 : 173,438.88 = 36,751.60 : x
  2. Step 2: Convert to fraction form
    115,658.56/173,438.88 = 36,751.60/x
  3. Step 3: Cross multiply
    115,658.56x = 173,438.88 × 36,751.60
  4. Step 4: Simplify right side
    115,658.56x = 6,374,156,342.21
  5. Step 5: Solve for x
    x = 6,374,156,342.21/115,658.56
  6. Step 6: Final answer
    x = 55,111.84

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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.