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Finding the Fourth Proportional to 54,967.40, 82,451.10 and 51,905.60

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Solution

The fourth proportional to 54,967.40, 82,451.10 and 51,905.60 is: 77,858.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,967.40 : 82,451.10 = 51,905.60 : x
  2. Step 2: Convert to fraction form
    54,967.40/82,451.10 = 51,905.60/x
  3. Step 3: Cross multiply
    54,967.40x = 82,451.10 × 51,905.60
  4. Step 4: Simplify right side
    54,967.40x = 4,279,673,816.16
  5. Step 5: Solve for x
    x = 4,279,673,816.16/54,967.40
  6. Step 6: Final answer
    x = 77,858.40

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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.