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Finding the Fourth Proportional to 219,078.02, 328,664.56 and 67,275.62

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Solution

The fourth proportional to 219,078.02, 328,664.56 and 67,275.62 is: 100,928.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,078.02 : 328,664.56 = 67,275.62 : x
  2. Step 2: Convert to fraction form
    219,078.02/328,664.56 = 67,275.62/x
  3. Step 3: Cross multiply
    219,078.02x = 328,664.56 × 67,275.62
  4. Step 4: Simplify right side
    219,078.02x = 22,111,112,046.03
  5. Step 5: Solve for x
    x = 22,111,112,046.03/219,078.02
  6. Step 6: Final answer
    x = 100,928.03

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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.