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Finding the Fourth Proportional to 91,773,310.60, 137,659,965.90 and 40,601,009.80

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Solution

The fourth proportional to 91,773,310.60, 137,659,965.90 and 40,601,009.80 is: 60,901,514.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,773,310.60 : 137,659,965.90 = 40,601,009.80 : x
  2. Step 2: Convert to fraction form
    91,773,310.60/137,659,965.90 = 40,601,009.80/x
  3. Step 3: Cross multiply
    91,773,310.60x = 137,659,965.90 × 40,601,009.80
  4. Step 4: Simplify right side
    91,773,310.60x = 5,589,133,624,573,566
  5. Step 5: Solve for x
    x = 5,589,133,624,573,566/91,773,310.60
  6. Step 6: Final answer
    x = 60,901,514.70

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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.