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Finding the Fourth Proportional to 348,858.72, 523,238.64 and 112,171.20

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Solution

The fourth proportional to 348,858.72, 523,238.64 and 112,171.20 is: 168,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,858.72 : 523,238.64 = 112,171.20 : x
  2. Step 2: Convert to fraction form
    348,858.72/523,238.64 = 112,171.20/x
  3. Step 3: Cross multiply
    348,858.72x = 523,238.64 × 112,171.20
  4. Step 4: Simplify right side
    348,858.72x = 58,692,306,135.17
  5. Step 5: Solve for x
    x = 58,692,306,135.17/348,858.72
  6. Step 6: Final answer
    x = 168,240.90

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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.