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Finding the Fourth Proportional to 159,394.99, 239,147.84 and 70,710.77

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Solution

The fourth proportional to 159,394.99, 239,147.84 and 70,710.77 is: 106,090.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,394.99 : 239,147.84 = 70,710.77 : x
  2. Step 2: Convert to fraction form
    159,394.99/239,147.84 = 70,710.77/x
  3. Step 3: Cross multiply
    159,394.99x = 239,147.84 × 70,710.77
  4. Step 4: Simplify right side
    159,394.99x = 16,910,328,684.88
  5. Step 5: Solve for x
    x = 16,910,328,684.88/159,394.99
  6. Step 6: Final answer
    x = 106,090.72

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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.