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Finding the Fourth Proportional to 328,625.73, 492,643.26 and 118,116

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Solution

The fourth proportional to 328,625.73, 492,643.26 and 118,116 is: 177,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,625.73 : 492,643.26 = 118,116 : x
  2. Step 2: Convert to fraction form
    328,625.73/492,643.26 = 118,116/x
  3. Step 3: Cross multiply
    328,625.73x = 492,643.26 × 118,116
  4. Step 4: Simplify right side
    328,625.73x = 58,189,051,298.16
  5. Step 5: Solve for x
    x = 58,189,051,298.16/328,625.73
  6. Step 6: Final answer
    x = 177,067.85

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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.