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Finding the Fourth Proportional to 64,266.80, 96,342.60 and 57,268.40

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Solution

The fourth proportional to 64,266.80, 96,342.60 and 57,268.40 is: 85,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,266.80 : 96,342.60 = 57,268.40 : x
  2. Step 2: Convert to fraction form
    64,266.80/96,342.60 = 57,268.40/x
  3. Step 3: Cross multiply
    64,266.80x = 96,342.60 × 57,268.40
  4. Step 4: Simplify right side
    64,266.80x = 5,517,386,553.84
  5. Step 5: Solve for x
    x = 5,517,386,553.84/64,266.80
  6. Step 6: Final answer
    x = 85,851.27

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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.