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Finding the Fourth Proportional to 219,817.80, 329,689.80 and 62,009.28

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Solution

The fourth proportional to 219,817.80, 329,689.80 and 62,009.28 is: 93,003.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,817.80 : 329,689.80 = 62,009.28 : x
  2. Step 2: Convert to fraction form
    219,817.80/329,689.80 = 62,009.28/x
  3. Step 3: Cross multiply
    219,817.80x = 329,689.80 × 62,009.28
  4. Step 4: Simplify right side
    219,817.80x = 20,443,827,121.34
  5. Step 5: Solve for x
    x = 20,443,827,121.34/219,817.80
  6. Step 6: Final answer
    x = 93,003.51

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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.