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Finding the Fourth Proportional to 238,962.86, 358,665.70 and 120,717.44

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Solution

The fourth proportional to 238,962.86, 358,665.70 and 120,717.44 is: 181,188.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,962.86 : 358,665.70 = 120,717.44 : x
  2. Step 2: Convert to fraction form
    238,962.86/358,665.70 = 120,717.44/x
  3. Step 3: Cross multiply
    238,962.86x = 358,665.70 × 120,717.44
  4. Step 4: Simplify right side
    238,962.86x = 43,297,205,119.81
  5. Step 5: Solve for x
    x = 43,297,205,119.81/238,962.86
  6. Step 6: Final answer
    x = 181,188.01

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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.