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Finding the Fourth Proportional to 57,833.60, 86,750.40 and 53,945.60

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Solution

The fourth proportional to 57,833.60, 86,750.40 and 53,945.60 is: 80,918.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,833.60 : 86,750.40 = 53,945.60 : x
  2. Step 2: Convert to fraction form
    57,833.60/86,750.40 = 53,945.60/x
  3. Step 3: Cross multiply
    57,833.60x = 86,750.40 × 53,945.60
  4. Step 4: Simplify right side
    57,833.60x = 4,679,802,378.24
  5. Step 5: Solve for x
    x = 4,679,802,378.24/57,833.60
  6. Step 6: Final answer
    x = 80,918.40

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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.