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Finding the Fourth Proportional to 120,610.12, 166,496.34 and 104,413

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Solution

The fourth proportional to 120,610.12, 166,496.34 and 104,413 is: 144,137.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,610.12 : 166,496.34 = 104,413 : x
  2. Step 2: Convert to fraction form
    120,610.12/166,496.34 = 104,413/x
  3. Step 3: Cross multiply
    120,610.12x = 166,496.34 × 104,413
  4. Step 4: Simplify right side
    120,610.12x = 17,384,382,348.42
  5. Step 5: Solve for x
    x = 17,384,382,348.42/120,610.12
  6. Step 6: Final answer
    x = 144,137.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.