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Finding the Fourth Proportional to 73,405.80, 110,108.70 and 54,816.30

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Solution

The fourth proportional to 73,405.80, 110,108.70 and 54,816.30 is: 82,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,405.80 : 110,108.70 = 54,816.30 : x
  2. Step 2: Convert to fraction form
    73,405.80/110,108.70 = 54,816.30/x
  3. Step 3: Cross multiply
    73,405.80x = 110,108.70 × 54,816.30
  4. Step 4: Simplify right side
    73,405.80x = 6,035,751,531.81
  5. Step 5: Solve for x
    x = 6,035,751,531.81/73,405.80
  6. Step 6: Final answer
    x = 82,224.45

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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.