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Finding the Fourth Proportional to 158,153.82, 236,968.20 and 111,308.28

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Solution

The fourth proportional to 158,153.82, 236,968.20 and 111,308.28 is: 166,777.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,153.82 : 236,968.20 = 111,308.28 : x
  2. Step 2: Convert to fraction form
    158,153.82/236,968.20 = 111,308.28/x
  3. Step 3: Cross multiply
    158,153.82x = 236,968.20 × 111,308.28
  4. Step 4: Simplify right side
    158,153.82x = 26,376,522,756.70
  5. Step 5: Solve for x
    x = 26,376,522,756.70/158,153.82
  6. Step 6: Final answer
    x = 166,777.65

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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.