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Finding the Fourth Proportional to 74,154.43, 111,230.71 and 17,995

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Solution

The fourth proportional to 74,154.43, 111,230.71 and 17,995 is: 26,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,154.43 : 111,230.71 = 17,995 : x
  2. Step 2: Convert to fraction form
    74,154.43/111,230.71 = 17,995/x
  3. Step 3: Cross multiply
    74,154.43x = 111,230.71 × 17,995
  4. Step 4: Simplify right side
    74,154.43x = 2,001,596,536.48
  5. Step 5: Solve for x
    x = 2,001,596,536.48/74,154.43
  6. Step 6: Final answer
    x = 26,992.27

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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.