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Finding the Fourth Proportional to 239,297.22, 358,856.43 and 79,343.82

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Solution

The fourth proportional to 239,297.22, 358,856.43 and 79,343.82 is: 118,986.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,297.22 : 358,856.43 = 79,343.82 : x
  2. Step 2: Convert to fraction form
    239,297.22/358,856.43 = 79,343.82/x
  3. Step 3: Cross multiply
    239,297.22x = 358,856.43 × 79,343.82
  4. Step 4: Simplify right side
    239,297.22x = 28,473,039,987.76
  5. Step 5: Solve for x
    x = 28,473,039,987.76/239,297.22
  6. Step 6: Final answer
    x = 118,986.09

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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.