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Finding the Fourth Proportional to 116,879.96, 175,118.51 and 91,285.92

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Solution

The fourth proportional to 116,879.96, 175,118.51 and 91,285.92 is: 136,771.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,879.96 : 175,118.51 = 91,285.92 : x
  2. Step 2: Convert to fraction form
    116,879.96/175,118.51 = 91,285.92/x
  3. Step 3: Cross multiply
    116,879.96x = 175,118.51 × 91,285.92
  4. Step 4: Simplify right side
    116,879.96x = 15,985,854,522.59
  5. Step 5: Solve for x
    x = 15,985,854,522.59/116,879.96
  6. Step 6: Final answer
    x = 136,771.56

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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.