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Finding the Fourth Proportional to 64,469.20, 96,703.80 and 63,485.05

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Solution

The fourth proportional to 64,469.20, 96,703.80 and 63,485.05 is: 95,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,469.20 : 96,703.80 = 63,485.05 : x
  2. Step 2: Convert to fraction form
    64,469.20/96,703.80 = 63,485.05/x
  3. Step 3: Cross multiply
    64,469.20x = 96,703.80 × 63,485.05
  4. Step 4: Simplify right side
    64,469.20x = 6,139,245,578.19
  5. Step 5: Solve for x
    x = 6,139,245,578.19/64,469.20
  6. Step 6: Final answer
    x = 95,227.58

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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.