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Finding the Fourth Proportional to 65,793,900.94, 90,795,605.25 and 36,026,431.72

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Solution

The fourth proportional to 65,793,900.94, 90,795,605.25 and 36,026,431.72 is: 49,716,487.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,793,900.94 : 90,795,605.25 = 36,026,431.72 : x
  2. Step 2: Convert to fraction form
    65,793,900.94/90,795,605.25 = 36,026,431.72/x
  3. Step 3: Cross multiply
    65,793,900.94x = 90,795,605.25 × 36,026,431.72
  4. Step 4: Simplify right side
    65,793,900.94x = 3,271,041,673,015,198.50
  5. Step 5: Solve for x
    x = 3,271,041,673,015,198.50/65,793,900.94
  6. Step 6: Final answer
    x = 49,716,487.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.