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Finding the Fourth Proportional to 219,348.90, 328,531.28 and 179,982.90

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Solution

The fourth proportional to 219,348.90, 328,531.28 and 179,982.90 is: 269,570.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,348.90 : 328,531.28 = 179,982.90 : x
  2. Step 2: Convert to fraction form
    219,348.90/328,531.28 = 179,982.90/x
  3. Step 3: Cross multiply
    219,348.90x = 328,531.28 × 179,982.90
  4. Step 4: Simplify right side
    219,348.90x = 59,130,011,615.20
  5. Step 5: Solve for x
    x = 59,130,011,615.20/219,348.90
  6. Step 6: Final answer
    x = 269,570.59

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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.