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Finding the Fourth Proportional to 238,990.17, 358,560.60 and 112,625.31

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Solution

The fourth proportional to 238,990.17, 358,560.60 and 112,625.31 is: 168,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,990.17 : 358,560.60 = 112,625.31 : x
  2. Step 2: Convert to fraction form
    238,990.17/358,560.60 = 112,625.31/x
  3. Step 3: Cross multiply
    238,990.17x = 358,560.60 × 112,625.31
  4. Step 4: Simplify right side
    238,990.17x = 40,382,996,961.84
  5. Step 5: Solve for x
    x = 40,382,996,961.84/238,990.17
  6. Step 6: Final answer
    x = 168,973.47

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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.