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Finding the Fourth Proportional to 448,705.60, 673,062.64 and 133,162.56

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Solution

The fourth proportional to 448,705.60, 673,062.64 and 133,162.56 is: 199,745.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,705.60 : 673,062.64 = 133,162.56 : x
  2. Step 2: Convert to fraction form
    448,705.60/673,062.64 = 133,162.56/x
  3. Step 3: Cross multiply
    448,705.60x = 673,062.64 × 133,162.56
  4. Step 4: Simplify right side
    448,705.60x = 89,626,744,182.76
  5. Step 5: Solve for x
    x = 89,626,744,182.76/448,705.60
  6. Step 6: Final answer
    x = 199,745.10

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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.