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Finding the Fourth Proportional to 79,909.92, 119,750.64 and 58,683.42

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Solution

The fourth proportional to 79,909.92, 119,750.64 and 58,683.42 is: 87,941.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,909.92 : 119,750.64 = 58,683.42 : x
  2. Step 2: Convert to fraction form
    79,909.92/119,750.64 = 58,683.42/x
  3. Step 3: Cross multiply
    79,909.92x = 119,750.64 × 58,683.42
  4. Step 4: Simplify right side
    79,909.92x = 7,027,377,102.39
  5. Step 5: Solve for x
    x = 7,027,377,102.39/79,909.92
  6. Step 6: Final answer
    x = 87,941.24

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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.