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Finding the Fourth Proportional to 238,909.77, 358,586.09 and 120,664.15

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Solution

The fourth proportional to 238,909.77, 358,586.09 and 120,664.15 is: 181,108.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,909.77 : 358,586.09 = 120,664.15 : x
  2. Step 2: Convert to fraction form
    238,909.77/358,586.09 = 120,664.15/x
  3. Step 3: Cross multiply
    238,909.77x = 358,586.09 × 120,664.15
  4. Step 4: Simplify right side
    238,909.77x = 43,268,484,704.38
  5. Step 5: Solve for x
    x = 43,268,484,704.38/238,909.77
  6. Step 6: Final answer
    x = 181,108.06

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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.