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Finding the Fourth Proportional to 219,195.35, 328,765.32 and 69,450.83

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Solution

The fourth proportional to 219,195.35, 328,765.32 and 69,450.83 is: 104,167.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,195.35 : 328,765.32 = 69,450.83 : x
  2. Step 2: Convert to fraction form
    219,195.35/328,765.32 = 69,450.83/x
  3. Step 3: Cross multiply
    219,195.35x = 328,765.32 × 69,450.83
  4. Step 4: Simplify right side
    219,195.35x = 22,833,022,705.39
  5. Step 5: Solve for x
    x = 22,833,022,705.39/219,195.35
  6. Step 6: Final answer
    x = 104,167.46

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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.