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Finding the Fourth Proportional to 111,858.80, 167,788.20 and 52,674.80

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Solution

The fourth proportional to 111,858.80, 167,788.20 and 52,674.80 is: 79,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,858.80 : 167,788.20 = 52,674.80 : x
  2. Step 2: Convert to fraction form
    111,858.80/167,788.20 = 52,674.80/x
  3. Step 3: Cross multiply
    111,858.80x = 167,788.20 × 52,674.80
  4. Step 4: Simplify right side
    111,858.80x = 8,838,209,877.36
  5. Step 5: Solve for x
    x = 8,838,209,877.36/111,858.80
  6. Step 6: Final answer
    x = 79,012.20

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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.