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Finding the Fourth Proportional to 159,815.30, 239,554.44 and 53,170.77

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Solution

The fourth proportional to 159,815.30, 239,554.44 and 53,170.77 is: 79,700.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,815.30 : 239,554.44 = 53,170.77 : x
  2. Step 2: Convert to fraction form
    159,815.30/239,554.44 = 53,170.77/x
  3. Step 3: Cross multiply
    159,815.30x = 239,554.44 × 53,170.77
  4. Step 4: Simplify right side
    159,815.30x = 12,737,294,031.72
  5. Step 5: Solve for x
    x = 12,737,294,031.72/159,815.30
  6. Step 6: Final answer
    x = 79,700.09

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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.