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Finding the Fourth Proportional to 238,611.89, 357,909.64 and 61,120.44

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Solution

The fourth proportional to 238,611.89, 357,909.64 and 61,120.44 is: 91,678.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,611.89 : 357,909.64 = 61,120.44 : x
  2. Step 2: Convert to fraction form
    238,611.89/357,909.64 = 61,120.44/x
  3. Step 3: Cross multiply
    238,611.89x = 357,909.64 × 61,120.44
  4. Step 4: Simplify right side
    238,611.89x = 21,875,594,524.24
  5. Step 5: Solve for x
    x = 21,875,594,524.24/238,611.89
  6. Step 6: Final answer
    x = 91,678.56

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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.