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Finding the Fourth Proportional to 45,190.88, 67,809.95 and 32,813.15

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Solution

The fourth proportional to 45,190.88, 67,809.95 and 32,813.15 is: 49,236.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,190.88 : 67,809.95 = 32,813.15 : x
  2. Step 2: Convert to fraction form
    45,190.88/67,809.95 = 32,813.15/x
  3. Step 3: Cross multiply
    45,190.88x = 67,809.95 × 32,813.15
  4. Step 4: Simplify right side
    45,190.88x = 2,225,057,803.83
  5. Step 5: Solve for x
    x = 2,225,057,803.83/45,190.88
  6. Step 6: Final answer
    x = 49,236.88

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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.