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Finding the Fourth Proportional to 54,317.60, 81,411.60 and 48,744.80

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Solution

The fourth proportional to 54,317.60, 81,411.60 and 48,744.80 is: 73,059.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,317.60 : 81,411.60 = 48,744.80 : x
  2. Step 2: Convert to fraction form
    54,317.60/81,411.60 = 48,744.80/x
  3. Step 3: Cross multiply
    54,317.60x = 81,411.60 × 48,744.80
  4. Step 4: Simplify right side
    54,317.60x = 3,968,392,159.68
  5. Step 5: Solve for x
    x = 3,968,392,159.68/54,317.60
  6. Step 6: Final answer
    x = 73,059.05

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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.