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Finding the Fourth Proportional to 219,555.64, 329,304.30 and 61,797.61

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Solution

The fourth proportional to 219,555.64, 329,304.30 and 61,797.61 is: 92,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,555.64 : 329,304.30 = 61,797.61 : x
  2. Step 2: Convert to fraction form
    219,555.64/329,304.30 = 61,797.61/x
  3. Step 3: Cross multiply
    219,555.64x = 329,304.30 × 61,797.61
  4. Step 4: Simplify right side
    219,555.64x = 20,350,218,702.72
  5. Step 5: Solve for x
    x = 20,350,218,702.72/219,555.64
  6. Step 6: Final answer
    x = 92,688.21

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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.