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Finding the Fourth Proportional to 88,980.56, 122,739.80 and 58,765.94

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Solution

The fourth proportional to 88,980.56, 122,739.80 and 58,765.94 is: 81,061.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,980.56 : 122,739.80 = 58,765.94 : x
  2. Step 2: Convert to fraction form
    88,980.56/122,739.80 = 58,765.94/x
  3. Step 3: Cross multiply
    88,980.56x = 122,739.80 × 58,765.94
  4. Step 4: Simplify right side
    88,980.56x = 7,212,919,722.41
  5. Step 5: Solve for x
    x = 7,212,919,722.41/88,980.56
  6. Step 6: Final answer
    x = 81,061.75

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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.