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Finding the Fourth Proportional to 160,480.62, 240,701.49 and 81,651.42

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Solution

The fourth proportional to 160,480.62, 240,701.49 and 81,651.42 is: 122,467.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,480.62 : 240,701.49 = 81,651.42 : x
  2. Step 2: Convert to fraction form
    160,480.62/240,701.49 = 81,651.42/x
  3. Step 3: Cross multiply
    160,480.62x = 240,701.49 × 81,651.42
  4. Step 4: Simplify right side
    160,480.62x = 19,653,618,454.62
  5. Step 5: Solve for x
    x = 19,653,618,454.62/160,480.62
  6. Step 6: Final answer
    x = 122,467.24

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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.