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Finding the Fourth Proportional to 238,712.72, 358,069.10 and 112,274.37

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Solution

The fourth proportional to 238,712.72, 358,069.10 and 112,274.37 is: 168,411.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,712.72 : 358,069.10 = 112,274.37 : x
  2. Step 2: Convert to fraction form
    238,712.72/358,069.10 = 112,274.37/x
  3. Step 3: Cross multiply
    238,712.72x = 358,069.10 × 112,274.37
  4. Step 4: Simplify right side
    238,712.72x = 40,201,982,057.60
  5. Step 5: Solve for x
    x = 40,201,982,057.60/238,712.72
  6. Step 6: Final answer
    x = 168,411.57

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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.