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Finding the Fourth Proportional to 178,487,662.75, 267,844,751.57 and 76,252,469.47

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Solution

The fourth proportional to 178,487,662.75, 267,844,751.57 and 76,252,469.47 is: 114,427,089.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,487,662.75 : 267,844,751.57 = 76,252,469.47 : x
  2. Step 2: Convert to fraction form
    178,487,662.75/267,844,751.57 = 76,252,469.47/x
  3. Step 3: Cross multiply
    178,487,662.75x = 267,844,751.57 × 76,252,469.47
  4. Step 4: Simplify right side
    178,487,662.75x = 20,423,823,741,791,160
  5. Step 5: Solve for x
    x = 20,423,823,741,791,160/178,487,662.75
  6. Step 6: Final answer
    x = 114,427,089.40

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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.