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Finding the Fourth Proportional to 116,218.80, 173,890.80 and 76,852.80

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Solution

The fourth proportional to 116,218.80, 173,890.80 and 76,852.80 is: 114,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,218.80 : 173,890.80 = 76,852.80 : x
  2. Step 2: Convert to fraction form
    116,218.80/173,890.80 = 76,852.80/x
  3. Step 3: Cross multiply
    116,218.80x = 173,890.80 × 76,852.80
  4. Step 4: Simplify right side
    116,218.80x = 13,363,994,874.24
  5. Step 5: Solve for x
    x = 13,363,994,874.24/116,218.80
  6. Step 6: Final answer
    x = 114,989.96

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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.