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Finding the Fourth Proportional to 79,491.67, 118,977.90 and 58,426.14

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Solution

The fourth proportional to 79,491.67, 118,977.90 and 58,426.14 is: 87,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,491.67 : 118,977.90 = 58,426.14 : x
  2. Step 2: Convert to fraction form
    79,491.67/118,977.90 = 58,426.14/x
  3. Step 3: Cross multiply
    79,491.67x = 118,977.90 × 58,426.14
  4. Step 4: Simplify right side
    79,491.67x = 6,951,419,442.31
  5. Step 5: Solve for x
    x = 6,951,419,442.31/79,491.67
  6. Step 6: Final answer
    x = 87,448.40

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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.