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Finding the Fourth Proportional to 219,230.34, 328,854.75 and 69,467.31

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Solution

The fourth proportional to 219,230.34, 328,854.75 and 69,467.31 is: 104,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,230.34 : 328,854.75 = 69,467.31 : x
  2. Step 2: Convert to fraction form
    219,230.34/328,854.75 = 69,467.31/x
  3. Step 3: Cross multiply
    219,230.34x = 328,854.75 × 69,467.31
  4. Step 4: Simplify right side
    219,230.34x = 22,844,654,863.22
  5. Step 5: Solve for x
    x = 22,844,654,863.22/219,230.34
  6. Step 6: Final answer
    x = 104,203.89

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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.