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Finding the Fourth Proportional to 63,701.64, 87,707.44 and 57,796.72

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Solution

The fourth proportional to 63,701.64, 87,707.44 and 57,796.72 is: 79,577.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,701.64 : 87,707.44 = 57,796.72 : x
  2. Step 2: Convert to fraction form
    63,701.64/87,707.44 = 57,796.72/x
  3. Step 3: Cross multiply
    63,701.64x = 87,707.44 × 57,796.72
  4. Step 4: Simplify right side
    63,701.64x = 5,069,202,351.60
  5. Step 5: Solve for x
    x = 5,069,202,351.60/63,701.64
  6. Step 6: Final answer
    x = 79,577.27

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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.