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Finding the Fourth Proportional to 158,164.88, 236,984.80 and 111,319.28

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Solution

The fourth proportional to 158,164.88, 236,984.80 and 111,319.28 is: 166,794.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,164.88 : 236,984.80 = 111,319.28 : x
  2. Step 2: Convert to fraction form
    158,164.88/236,984.80 = 111,319.28/x
  3. Step 3: Cross multiply
    158,164.88x = 236,984.80 × 111,319.28
  4. Step 4: Simplify right side
    158,164.88x = 26,380,977,306.94
  5. Step 5: Solve for x
    x = 26,380,977,306.94/158,164.88
  6. Step 6: Final answer
    x = 166,794.15

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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.