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Finding the Fourth Proportional to 71,986.44, 99,335.06 and 46,493.92

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Solution

The fourth proportional to 71,986.44, 99,335.06 and 46,493.92 is: 64,157.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,986.44 : 99,335.06 = 46,493.92 : x
  2. Step 2: Convert to fraction form
    71,986.44/99,335.06 = 46,493.92/x
  3. Step 3: Cross multiply
    71,986.44x = 99,335.06 × 46,493.92
  4. Step 4: Simplify right side
    71,986.44x = 4,618,475,603.69
  5. Step 5: Solve for x
    x = 4,618,475,603.69/71,986.44
  6. Step 6: Final answer
    x = 64,157.58

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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.