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Finding the Fourth Proportional to 45,188.43, 67,378.64 and 43,947.00

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Solution

The fourth proportional to 45,188.43, 67,378.64 and 43,947.00 is: 65,527.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,188.43 : 67,378.64 = 43,947.00 : x
  2. Step 2: Convert to fraction form
    45,188.43/67,378.64 = 43,947.00/x
  3. Step 3: Cross multiply
    45,188.43x = 67,378.64 × 43,947.00
  4. Step 4: Simplify right side
    45,188.43x = 2,961,089,081.08
  5. Step 5: Solve for x
    x = 2,961,089,081.08/45,188.43
  6. Step 6: Final answer
    x = 65,527.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.