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Finding the Fourth Proportional to 238,672.57, 357,979.69 and 98,412.97

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Solution

The fourth proportional to 238,672.57, 357,979.69 and 98,412.97 is: 147,607.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,672.57 : 357,979.69 = 98,412.97 : x
  2. Step 2: Convert to fraction form
    238,672.57/357,979.69 = 98,412.97/x
  3. Step 3: Cross multiply
    238,672.57x = 357,979.69 × 98,412.97
  4. Step 4: Simplify right side
    238,672.57x = 35,229,844,492.58
  5. Step 5: Solve for x
    x = 35,229,844,492.58/238,672.57
  6. Step 6: Final answer
    x = 147,607.43

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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.