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Finding the Fourth Proportional to 219,379.59, 329,116.77 and 69,631.92

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Solution

The fourth proportional to 219,379.59, 329,116.77 and 69,631.92 is: 104,462.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,379.59 : 329,116.77 = 69,631.92 : x
  2. Step 2: Convert to fraction form
    219,379.59/329,116.77 = 69,631.92/x
  3. Step 3: Cross multiply
    219,379.59x = 329,116.77 × 69,631.92
  4. Step 4: Simplify right side
    219,379.59x = 22,917,032,599.30
  5. Step 5: Solve for x
    x = 22,917,032,599.30/219,379.59
  6. Step 6: Final answer
    x = 104,462.92

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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.