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Finding the Fourth Proportional to 57,374.88, 86,043.84 and 53,643.36

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Solution

The fourth proportional to 57,374.88, 86,043.84 and 53,643.36 is: 80,447.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,374.88 : 86,043.84 = 53,643.36 : x
  2. Step 2: Convert to fraction form
    57,374.88/86,043.84 = 53,643.36/x
  3. Step 3: Cross multiply
    57,374.88x = 86,043.84 × 53,643.36
  4. Step 4: Simplify right side
    57,374.88x = 4,615,680,684.90
  5. Step 5: Solve for x
    x = 4,615,680,684.90/57,374.88
  6. Step 6: Final answer
    x = 80,447.76

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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.