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Finding the Fourth Proportional to 238,759.68, 358,287.75 and 138,964.44

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Solution

The fourth proportional to 238,759.68, 358,287.75 and 138,964.44 is: 208,532.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,759.68 : 358,287.75 = 138,964.44 : x
  2. Step 2: Convert to fraction form
    238,759.68/358,287.75 = 138,964.44/x
  3. Step 3: Cross multiply
    238,759.68x = 358,287.75 × 138,964.44
  4. Step 4: Simplify right side
    238,759.68x = 49,789,256,537.61
  5. Step 5: Solve for x
    x = 49,789,256,537.61/238,759.68
  6. Step 6: Final answer
    x = 208,532.93

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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.