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Finding the Fourth Proportional to 220,290.04, 330,435.38 and 54,078.04

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Solution

The fourth proportional to 220,290.04, 330,435.38 and 54,078.04 is: 81,117.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,290.04 : 330,435.38 = 54,078.04 : x
  2. Step 2: Convert to fraction form
    220,290.04/330,435.38 = 54,078.04/x
  3. Step 3: Cross multiply
    220,290.04x = 330,435.38 × 54,078.04
  4. Step 4: Simplify right side
    220,290.04x = 17,869,297,697.06
  5. Step 5: Solve for x
    x = 17,869,297,697.06/220,290.04
  6. Step 6: Final answer
    x = 81,117.14

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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.