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Finding the Fourth Proportional to 48,614.40, 72,921.60 and 43,365.60

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Solution

The fourth proportional to 48,614.40, 72,921.60 and 43,365.60 is: 65,048.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,614.40 : 72,921.60 = 43,365.60 : x
  2. Step 2: Convert to fraction form
    48,614.40/72,921.60 = 43,365.60/x
  3. Step 3: Cross multiply
    48,614.40x = 72,921.60 × 43,365.60
  4. Step 4: Simplify right side
    48,614.40x = 3,162,288,936.96
  5. Step 5: Solve for x
    x = 3,162,288,936.96/48,614.40
  6. Step 6: Final answer
    x = 65,048.40

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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.