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Finding the Fourth Proportional to 110,997.53, 154,209.80 and 109,668.93

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Solution

The fourth proportional to 110,997.53, 154,209.80 and 109,668.93 is: 152,363.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,997.53 : 154,209.80 = 109,668.93 : x
  2. Step 2: Convert to fraction form
    110,997.53/154,209.80 = 109,668.93/x
  3. Step 3: Cross multiply
    110,997.53x = 154,209.80 × 109,668.93
  4. Step 4: Simplify right side
    110,997.53x = 16,912,023,761.51
  5. Step 5: Solve for x
    x = 16,912,023,761.51/110,997.53
  6. Step 6: Final answer
    x = 152,363.96

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.