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Finding the Fourth Proportional to 348,236.72, 522,048.80 and 138,022.24

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Solution

The fourth proportional to 348,236.72, 522,048.80 and 138,022.24 is: 206,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,236.72 : 522,048.80 = 138,022.24 : x
  2. Step 2: Convert to fraction form
    348,236.72/522,048.80 = 138,022.24/x
  3. Step 3: Cross multiply
    348,236.72x = 522,048.80 × 138,022.24
  4. Step 4: Simplify right side
    348,236.72x = 72,054,344,765.31
  5. Step 5: Solve for x
    x = 72,054,344,765.31/348,236.72
  6. Step 6: Final answer
    x = 206,911.97

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1.5x scale

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.