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Finding the Fourth Proportional to 111,898.20, 167,847.30 and 64,594.20

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Solution

The fourth proportional to 111,898.20, 167,847.30 and 64,594.20 is: 96,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,898.20 : 167,847.30 = 64,594.20 : x
  2. Step 2: Convert to fraction form
    111,898.20/167,847.30 = 64,594.20/x
  3. Step 3: Cross multiply
    111,898.20x = 167,847.30 × 64,594.20
  4. Step 4: Simplify right side
    111,898.20x = 10,841,962,065.66
  5. Step 5: Solve for x
    x = 10,841,962,065.66/111,898.20
  6. Step 6: Final answer
    x = 96,891.30

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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.