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Finding the Fourth Proportional to 239,858.46, 359,893.80 and 125,979.48

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Solution

The fourth proportional to 239,858.46, 359,893.80 and 125,979.48 is: 189,024.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,858.46 : 359,893.80 = 125,979.48 : x
  2. Step 2: Convert to fraction form
    239,858.46/359,893.80 = 125,979.48/x
  3. Step 3: Cross multiply
    239,858.46x = 359,893.80 × 125,979.48
  4. Step 4: Simplify right side
    239,858.46x = 45,339,233,779.22
  5. Step 5: Solve for x
    x = 45,339,233,779.22/239,858.46
  6. Step 6: Final answer
    x = 189,024.95

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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.