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Finding the Fourth Proportional to 259,053.56, 388,017.89 and 125,653.44

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Solution

The fourth proportional to 259,053.56, 388,017.89 and 125,653.44 is: 188,207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,053.56 : 388,017.89 = 125,653.44 : x
  2. Step 2: Convert to fraction form
    259,053.56/388,017.89 = 125,653.44/x
  3. Step 3: Cross multiply
    259,053.56x = 388,017.89 × 125,653.44
  4. Step 4: Simplify right side
    259,053.56x = 48,755,782,031.77
  5. Step 5: Solve for x
    x = 48,755,782,031.77/259,053.56
  6. Step 6: Final answer
    x = 188,207.35

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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.