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Finding the Fourth Proportional to 88,992.56, 122,756.36 and 58,777.94

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Solution

The fourth proportional to 88,992.56, 122,756.36 and 58,777.94 is: 81,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,992.56 : 122,756.36 = 58,777.94 : x
  2. Step 2: Convert to fraction form
    88,992.56/122,756.36 = 58,777.94/x
  3. Step 3: Cross multiply
    88,992.56x = 122,756.36 × 58,777.94
  4. Step 4: Simplify right side
    88,992.56x = 7,215,365,962.70
  5. Step 5: Solve for x
    x = 7,215,365,962.70/88,992.56
  6. Step 6: Final answer
    x = 81,078.31

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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.