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Finding the Fourth Proportional to 76,608.62, 114,768.04 and 43,352.55

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Solution

The fourth proportional to 76,608.62, 114,768.04 and 43,352.55 is: 64,946.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608.62 : 114,768.04 = 43,352.55 : x
  2. Step 2: Convert to fraction form
    76,608.62/114,768.04 = 43,352.55/x
  3. Step 3: Cross multiply
    76,608.62x = 114,768.04 × 43,352.55
  4. Step 4: Simplify right side
    76,608.62x = 4,975,487,084.12
  5. Step 5: Solve for x
    x = 4,975,487,084.12/76,608.62
  6. Step 6: Final answer
    x = 64,946.84

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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.