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Finding the Fourth Proportional to 165,758.21, 248,635.49 and 99,216.91

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Solution

The fourth proportional to 165,758.21, 248,635.49 and 99,216.91 is: 148,824.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,758.21 : 248,635.49 = 99,216.91 : x
  2. Step 2: Convert to fraction form
    165,758.21/248,635.49 = 99,216.91/x
  3. Step 3: Cross multiply
    165,758.21x = 248,635.49 × 99,216.91
  4. Step 4: Simplify right side
    165,758.21x = 24,668,844,848.85
  5. Step 5: Solve for x
    x = 24,668,844,848.85/165,758.21
  6. Step 6: Final answer
    x = 148,824.27

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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.