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Finding the Fourth Proportional to 57,137.48, 78,851.04 and 33,268.40

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Solution

The fourth proportional to 57,137.48, 78,851.04 and 33,268.40 is: 45,911.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,137.48 : 78,851.04 = 33,268.40 : x
  2. Step 2: Convert to fraction form
    57,137.48/78,851.04 = 33,268.40/x
  3. Step 3: Cross multiply
    57,137.48x = 78,851.04 × 33,268.40
  4. Step 4: Simplify right side
    57,137.48x = 2,623,247,939.14
  5. Step 5: Solve for x
    x = 2,623,247,939.14/57,137.48
  6. Step 6: Final answer
    x = 45,911.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.