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Finding the Fourth Proportional to 158,165.88, 236,986.30 and 111,320.28

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Solution

The fourth proportional to 158,165.88, 236,986.30 and 111,320.28 is: 166,795.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,165.88 : 236,986.30 = 111,320.28 : x
  2. Step 2: Convert to fraction form
    158,165.88/236,986.30 = 111,320.28/x
  3. Step 3: Cross multiply
    158,165.88x = 236,986.30 × 111,320.28
  4. Step 4: Simplify right side
    158,165.88x = 26,381,381,272.16
  5. Step 5: Solve for x
    x = 26,381,381,272.16/158,165.88
  6. Step 6: Final answer
    x = 166,795.65

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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.