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Finding the Fourth Proportional to 79,997.42, 119,881.01 and 58,770.77

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Solution

The fourth proportional to 79,997.42, 119,881.01 and 58,770.77 is: 88,071.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,997.42 : 119,881.01 = 58,770.77 : x
  2. Step 2: Convert to fraction form
    79,997.42/119,881.01 = 58,770.77/x
  3. Step 3: Cross multiply
    79,997.42x = 119,881.01 × 58,770.77
  4. Step 4: Simplify right side
    79,997.42x = 7,045,498,813.60
  5. Step 5: Solve for x
    x = 7,045,498,813.60/79,997.42
  6. Step 6: Final answer
    x = 88,071.57

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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.