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Finding the Fourth Proportional to 448,257.92, 672,485.24 and 132,739.34

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Solution

The fourth proportional to 448,257.92, 672,485.24 and 132,739.34 is: 199,138.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,257.92 : 672,485.24 = 132,739.34 : x
  2. Step 2: Convert to fraction form
    448,257.92/672,485.24 = 132,739.34/x
  3. Step 3: Cross multiply
    448,257.92x = 672,485.24 × 132,739.34
  4. Step 4: Simplify right side
    448,257.92x = 89,265,243,886.76
  5. Step 5: Solve for x
    x = 89,265,243,886.76/448,257.92
  6. Step 6: Final answer
    x = 199,138.13

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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.