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Finding the Fourth Proportional to 64,371.94, 96,565.20 and 57,757.48

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Solution

The fourth proportional to 64,371.94, 96,565.20 and 57,757.48 is: 86,642.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,371.94 : 96,565.20 = 57,757.48 : x
  2. Step 2: Convert to fraction form
    64,371.94/96,565.20 = 57,757.48/x
  3. Step 3: Cross multiply
    64,371.94x = 96,565.20 × 57,757.48
  4. Step 4: Simplify right side
    64,371.94x = 5,577,362,607.70
  5. Step 5: Solve for x
    x = 5,577,362,607.70/64,371.94
  6. Step 6: Final answer
    x = 86,642.76

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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.