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Finding the Fourth Proportional to 60,784,906.60, 91,177,359.90 and 18,234,634.60

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Solution

The fourth proportional to 60,784,906.60, 91,177,359.90 and 18,234,634.60 is: 27,351,951.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,784,906.60 : 91,177,359.90 = 18,234,634.60 : x
  2. Step 2: Convert to fraction form
    60,784,906.60/91,177,359.90 = 18,234,634.60/x
  3. Step 3: Cross multiply
    60,784,906.60x = 91,177,359.90 × 18,234,634.60
  4. Step 4: Simplify right side
    60,784,906.60x = 1,662,585,841,569,192.75
  5. Step 5: Solve for x
    x = 1,662,585,841,569,192.75/60,784,906.60
  6. Step 6: Final answer
    x = 27,351,951.90

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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.