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Finding the Fourth Proportional to 219,805.20, 329,761.80 and 62,031.60

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Solution

The fourth proportional to 219,805.20, 329,761.80 and 62,031.60 is: 93,062.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,805.20 : 329,761.80 = 62,031.60 : x
  2. Step 2: Convert to fraction form
    219,805.20/329,761.80 = 62,031.60/x
  3. Step 3: Cross multiply
    219,805.20x = 329,761.80 × 62,031.60
  4. Step 4: Simplify right side
    219,805.20x = 20,455,652,072.88
  5. Step 5: Solve for x
    x = 20,455,652,072.88/219,805.20
  6. Step 6: Final answer
    x = 93,062.64

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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.