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Finding the Fourth Proportional to 219,407.70, 329,046.31 and 93,046.08

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Solution

The fourth proportional to 219,407.70, 329,046.31 and 93,046.08 is: 139,541.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,407.70 : 329,046.31 = 93,046.08 : x
  2. Step 2: Convert to fraction form
    219,407.70/329,046.31 = 93,046.08/x
  3. Step 3: Cross multiply
    219,407.70x = 329,046.31 × 93,046.08
  4. Step 4: Simplify right side
    219,407.70x = 30,616,469,283.96
  5. Step 5: Solve for x
    x = 30,616,469,283.96/219,407.70
  6. Step 6: Final answer
    x = 139,541.45

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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.